{"title":"Bơm AODD tuân thủ FDA","description":"\u003cp data-start=\"327\" data-end=\"821\"\u003eĐối với các ngành công nghiệp mà độ tinh khiết của sản phẩm là quan trọng, \u003cstrong data-start=\"372\" data-end=\"400\"\u003emáy bơm AODD tuân thủ FDA\u003c\/strong\u003e mang lại khả năng truyền chất lỏng an toàn, hợp vệ sinh và đáng tin cậy cho các ứng dụng nhạy cảm. Được thiết kế với \u003cstrong data-start=\"495\" data-end=\"528\"\u003evật liệu tiếp xúc với chất lỏng được FDA chấp thuận\u003c\/strong\u003e, các máy bơm màng đôi hoạt động bằng khí nén này lý tưởng để xử lý các sản phẩm thực phẩm, đồ uống, sữa, mỹ phẩm và dược phẩm mà không có nguy cơ lây nhiễm. Tác động bơm nhẹ nhàng của chúng giúp bảo vệ chất lỏng nhạy cảm với lực cắt trong khi vẫn duy trì chất lượng sản phẩm trong suốt quá trình.\u003c\/p\u003e\n\u003cp data-start=\"823\" data-end=\"1292\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eĐược sử dụng phổ biến trong \u003cstrong data-start=\"844\" data-end=\"961\"\u003esản xuất thực phẩm \u0026amp; đồ uống, sản xuất sản phẩm chăm sóc cá nhân và các nhà máy dược phẩm ở Malaysia và Đông Nam Á\u003c\/strong\u003e, máy bơm AODD tuân thủ FDA được chế tạo để dễ dàng vệ sinh, chống ăn mòn và hiệu suất nhất quán. Với các tùy chọn vật liệu thép không gỉ và cấp vệ sinh, chúng là lựa chọn ưu tiên cho các nhà sản xuất yêu cầu tiêu chuẩn vệ sinh nghiêm ngặt, bảo trì dễ dàng và hoạt động đáng tin cậy trong môi trường sản xuất khắt khe.\u003c\/p\u003e","products":[{"product_id":"sandpiper-sb1-sb25-air-end-kit","title":"Sandpiper SB1 \/ SB25 1\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc 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17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper SB1 \/ SB25 1\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible SB1 \/ SB25 1\" Metallic Heavy Duty Ball Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper SB1 Air End Kit\u003c\/strong\u003e services the air distribution side of compatible Metallic Heavy Duty Ball Valve AODD pumps. Manufacturer documentation lists configuration-specific Air End Kit selections, including \u003cstrong\u003e476.311.000\u003c\/strong\u003e and \u003cstrong\u003e476.103.000\u003c\/strong\u003e. Match the installed pump configuration to the manufacturer part number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper SB1 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible SB1 \/ SB25 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals, plungers and retaining rings.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled SB1 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eSB1 \/ SB25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Ball Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003ePump Centre Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals, plungers and retaining rings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eVaries according to selected configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct SB1 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete SB1 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper SB1 \/ SB25 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Ball Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper SB1 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePump Centre Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminium Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.311.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.103.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e The current SB1\/SB25 manual lists 476.311.000 for aluminium centres and 476.103.000 for cast iron centres.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified SB1 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the SB1 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper SB1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper SB1 \/ SB25 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper SB1?\u003c\/summary\u003e\u003cp\u003eThe current SB1\/SB25 manual lists 476.311.000 for aluminium centres and 476.103.000 for cast iron centres. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the SB1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct SB1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct SB1 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper SB1 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Aluminium Centre","offer_id":53055234212021,"sku":"476.311.000","price":0.0,"currency_code":"MYR","in_stock":true},{"title":"Cast Iron Centre","offer_id":53055234244789,"sku":"476.103.000*","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/a937fb3f-2410-4035-86c3-a9518c17617d.png?v=1789980040"},{"product_id":"sandpiper-hdb1-5-hdb40-air-end-kit","title":"Sandpiper HDB1½ \/ HDB40 1½\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-airend-desc p{margin:0 0 14px;font-size:15px;}\n.sp-airend-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-airend-desc li{margin-bottom:7px;}\n.sp-eyebrow{display:inline-block;color:var(--sp-blue);background:var(--sp-blue-light);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:6px 11px;border-radius:20px;margin-bottom:12px;}\n.sp-intro{font-size:16px!important;color:var(--sp-muted);max-width:880px;margin-bottom:22px!important;}\n.sp-atomic-answer{font-size:16px!important;background:var(--sp-blue-soft);border-left:4px solid var(--sp-blue);padding:18px 20px;border-radius:0 8px 8px 0;margin:0 0 28px!important;}\n.sp-overview-wrap{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:28px;align-items:start;margin:24px 0 28px;}\n.sp-ideal-for{background:var(--sp-blue-soft);border:1px solid #dfe5f5;border-radius:12px;padding:22px;}\n.sp-ideal-for h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDB1½ \/ HDB40 1½\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDB1½ \/ HDB40 1½\" Metallic Heavy Duty Ball Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDB1½ Air End Kit\u003c\/strong\u003e is a genuine service kit for the air distribution side of compatible Metallic Heavy Duty Ball Valve AODD pumps. The current manufacturer service information lists \u003cstrong\u003e476.362.000\u003c\/strong\u003e for the configuration covered by this page. Confirm the complete pump identification before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDB1½ Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDB1½ \/ HDB40 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, O-rings, bumpers, U-cup seals and gaskets.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDB1½ air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDB1½ \/ HDB40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Ball Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e1½\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003eSingle manufacturer-listed Air End Kit SKU for the product configuration shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, O-rings, bumpers, U-cup seals and gaskets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e476.362.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDB1½ Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDB1½ pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDB1½ \/ HDB40 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Ball Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDB1½ Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End Kit Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eComplete Air End Kit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.362.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e Use 476.362.000 as the complete Air End Kit for this Shopify product. Sandpiper also lists 476.314.000 for a smaller air-side wear\/refurbishment service scope; do not treat 476.314.000 as a variant of the complete Air End Kit product unless ABS intentionally creates a separate Air Wear\/Refurbishment Kit listing.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDB1½ air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDB1½ Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDB1½ Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDB1½ \/ HDB40 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDB1½?\u003c\/summary\u003e\u003cp\u003eUse 476.362.000 as the complete Air End Kit for this Shopify product. Sandpiper also lists 476.314.000 for a smaller air-side wear\/refurbishment service scope; do not treat 476.314.000 as a variant of the complete Air End Kit product unless ABS intentionally creates a separate Air Wear\/Refurbishment Kit listing. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDB1½ Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDB1½ Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDB1½ Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDB1½ pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Complete Air End Kit","offer_id":53055449202869,"sku":"476.362.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/Airendkit_f6b7de7f-a2d8-4df7-aefb-859564e7d084.png?v=1789975043"},{"product_id":"sandpiper-hdb2-hdb50-air-end-kit","title":"Sandpiper HDB2 \/ HDB50 2\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-airend-desc p{margin:0 0 14px;font-size:15px;}\n.sp-airend-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-airend-desc li{margin-bottom:7px;}\n.sp-eyebrow{display:inline-block;color:var(--sp-blue);background:var(--sp-blue-light);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:6px 11px;border-radius:20px;margin-bottom:12px;}\n.sp-intro{font-size:16px!important;color:var(--sp-muted);max-width:880px;margin-bottom:22px!important;}\n.sp-atomic-answer{font-size:16px!important;background:var(--sp-blue-soft);border-left:4px solid var(--sp-blue);padding:18px 20px;border-radius:0 8px 8px 0;margin:0 0 28px!important;}\n.sp-overview-wrap{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:28px;align-items:start;margin:24px 0 28px;}\n.sp-ideal-for{background:var(--sp-blue-soft);border:1px solid #dfe5f5;border-radius:12px;padding:22px;}\n.sp-ideal-for h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDB2 \/ HDB50 2\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDB2 \/ HDB50 2\" Metallic Heavy Duty Ball Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDB2 Air End Kit\u003c\/strong\u003e is a genuine service kit for the air distribution side of compatible Metallic Heavy Duty Ball Valve AODD pumps. The current manufacturer service information lists \u003cstrong\u003e476.362.000\u003c\/strong\u003e for the configuration covered by this page. Confirm the complete pump identification before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDB2 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDB2 \/ HDB50 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, O-rings, bumpers, U-cup seals and gaskets.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDB2 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDB2 \/ HDB50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Ball Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003eSingle manufacturer-listed Air End Kit SKU for the product configuration shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, O-rings, bumpers, U-cup seals and gaskets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e476.362.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDB2 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDB2 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDB2 \/ HDB50 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Ball Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDB2 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End Kit Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eComplete Air End Kit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.362.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e Use 476.362.000 as the complete Air End Kit for this Shopify product. Sandpiper also lists 476.314.000 for a smaller air-side wear\/refurbishment service scope; do not treat 476.314.000 as a variant of the complete Air End Kit product unless ABS intentionally creates a separate Air Wear\/Refurbishment Kit listing.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDB2 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDB2 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDB2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDB2 \/ HDB50 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDB2?\u003c\/summary\u003e\u003cp\u003eUse 476.362.000 as the complete Air End Kit for this Shopify product. Sandpiper also lists 476.314.000 for a smaller air-side wear\/refurbishment service scope; do not treat 476.314.000 as a variant of the complete Air End Kit product unless ABS intentionally creates a separate Air Wear\/Refurbishment Kit listing. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDB2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDB2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDB2 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDB2 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Complete Air End Kit","offer_id":53055577358517,"sku":"476.362.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/Airendkit_f6b7de7f-a2d8-4df7-aefb-859564e7d084.png?v=1789975043"},{"product_id":"sandpiper-hdb4-air-end-kit","title":"Sandpiper HDB4 4\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-airend-desc p{margin:0 0 14px;font-size:15px;}\n.sp-airend-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-airend-desc li{margin-bottom:7px;}\n.sp-eyebrow{display:inline-block;color:var(--sp-blue);background:var(--sp-blue-light);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:6px 11px;border-radius:20px;margin-bottom:12px;}\n.sp-intro{font-size:16px!important;color:var(--sp-muted);max-width:880px;margin-bottom:22px!important;}\n.sp-atomic-answer{font-size:16px!important;background:var(--sp-blue-soft);border-left:4px solid var(--sp-blue);padding:18px 20px;border-radius:0 8px 8px 0;margin:0 0 28px!important;}\n.sp-overview-wrap{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:28px;align-items:start;margin:24px 0 28px;}\n.sp-ideal-for{background:var(--sp-blue-soft);border:1px solid #dfe5f5;border-radius:12px;padding:22px;}\n.sp-ideal-for h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDB4 4\" Air End Kit for Metallic Heavy Duty Ball Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDB4 4\" Metallic Heavy Duty Ball Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDB4 Air End Kit\u003c\/strong\u003e is a genuine service kit for the air distribution side of compatible Metallic Heavy Duty Ball Valve AODD pumps. The current manufacturer service information lists \u003cstrong\u003e476.252.000\u003c\/strong\u003e for the configuration covered by this page. Confirm the complete pump identification before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDB4 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDB4 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve assembly, seals, O-rings and gaskets.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDB4 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDB4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Ball Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003eSingle manufacturer-listed Air End Kit SKU for the product configuration shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve assembly, seals, O-rings and gaskets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e476.252.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDB4 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDB4 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDB4 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Ball Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDB4 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End Kit Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHDB4 Air End Kit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.252.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e The current HDB3\/HDB4 service manual lists one Air End Kit, 476.252.000, for this pump family.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDB4 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDB4 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDB4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDB4 Heavy Duty Ball Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDB4?\u003c\/summary\u003e\u003cp\u003eThe current HDB3\/HDB4 service manual lists one Air End Kit, 476.252.000, for this pump family. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDB4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDB4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDB4 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDB4 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"HDB4 Air End Kit","offer_id":53056425230517,"sku":"476.252.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/Airendkit.png?v=1789974887"},{"product_id":"sandpiper-hdf1-hdf25-air-end-kit","title":"Sandpiper HDF1 \/ HDF25 1\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc 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h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDF1 \/ HDF25 1\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDF1 \/ HDF25 1\" Metallic Heavy Duty Flap Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDF1 Air End Kit\u003c\/strong\u003e services the air distribution side of compatible Metallic Heavy Duty Flap Valve AODD pumps. Manufacturer documentation lists configuration-specific Air End Kit selections, including \u003cstrong\u003e476.311.000\u003c\/strong\u003e and \u003cstrong\u003e476.103.000\u003c\/strong\u003e. Match the installed pump configuration to the manufacturer part number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDF1 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDF1 \/ HDF25 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals, plungers and retaining rings.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDF1 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDF1 \/ HDF25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Flap Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003ePump Centre Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals, plungers and retaining rings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eVaries according to selected configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDF1 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDF1 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDF1 \/ HDF25 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Flap Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDF1 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePump Centre Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminium Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.311.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.103.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e The current HDF1\/HDF25 manual lists 476.311.000 for aluminium centres and 476.103.000 for cast iron centres.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDF1 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDF1 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDF1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDF1 \/ HDF25 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDF1?\u003c\/summary\u003e\u003cp\u003eThe current HDF1\/HDF25 manual lists 476.311.000 for aluminium centres and 476.103.000 for cast iron centres. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDF1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDF1 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDF1 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDF1 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Aluminium Centre","offer_id":53056494862517,"sku":"476.311.000","price":0.0,"currency_code":"MYR","in_stock":true},{"title":"Cast Iron Centre","offer_id":53056494895285,"sku":"476.103.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/a937fb3f-2410-4035-86c3-a9518c17617d.png?v=1789980040"},{"product_id":"sandpiper-hdf2-hdf50-air-end-kit","title":"Sandpiper HDF2 \/ HDF50 2\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-airend-desc p{margin:0 0 14px;font-size:15px;}\n.sp-airend-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-airend-desc li{margin-bottom:7px;}\n.sp-eyebrow{display:inline-block;color:var(--sp-blue);background:var(--sp-blue-light);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:6px 11px;border-radius:20px;margin-bottom:12px;}\n.sp-intro{font-size:16px!important;color:var(--sp-muted);max-width:880px;margin-bottom:22px!important;}\n.sp-atomic-answer{font-size:16px!important;background:var(--sp-blue-soft);border-left:4px solid var(--sp-blue);padding:18px 20px;border-radius:0 8px 8px 0;margin:0 0 28px!important;}\n.sp-overview-wrap{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:28px;align-items:start;margin:24px 0 28px;}\n.sp-ideal-for{background:var(--sp-blue-soft);border:1px solid #dfe5f5;border-radius:12px;padding:22px;}\n.sp-ideal-for h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDF2 \/ HDF50 2\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDF2 \/ HDF50 2\" Metallic Heavy Duty Flap Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDF2 Air End Kit\u003c\/strong\u003e is a genuine service kit for the air distribution side of compatible Metallic Heavy Duty Flap Valve AODD pumps. The current manufacturer service information lists \u003cstrong\u003e476.247.000\u003c\/strong\u003e for the configuration covered by this page. Confirm the complete pump identification before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDF2 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDF2 \/ HDF50 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDF2 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDF2 \/ HDF50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Flap Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003eSingle manufacturer-listed Air End Kit SKU for the product configuration shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e476.247.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDF2 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDF2 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDF2 \/ HDF50 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Flap Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDF2 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End Kit Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHDF2 \/ HDF50 Air End Kit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.247.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e The current HDF2\/HDF50 manual lists 476.247.000 as the Air End Kit. The same manual shows several construction and air-side options, so non-standard air-valve or special-option configurations should be verified before ordering rather than creating unverified Shopify variants.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDF2 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDF2 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDF2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDF2 \/ HDF50 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDF2?\u003c\/summary\u003e\u003cp\u003eThe current HDF2\/HDF50 manual lists 476.247.000 as the Air End Kit. The same manual shows several construction and air-side options, so non-standard air-valve or special-option configurations should be verified before ordering rather than creating unverified Shopify variants. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDF2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDF2 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDF2 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDF2 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"HDF2 \/ HDF50 Air End Kit","offer_id":53060696473781,"sku":"476.247.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/4f904e10-16c7-47fb-b9da-d86fdf08e0ef.png?v=1789980514"},{"product_id":"sandpiper-hdf3-air-end-kit","title":"Sandpiper HDF3 3\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc 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h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDF3 3\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDF3 3\" Metallic Heavy Duty Flap Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDF3 Air End Kit\u003c\/strong\u003e services the air distribution side of compatible Metallic Heavy Duty Flap Valve AODD pumps. Manufacturer documentation lists configuration-specific Air End Kit selections, including \u003cstrong\u003e476.247.000\u003c\/strong\u003e and \u003cstrong\u003e476.251.000\u003c\/strong\u003e. Match the installed pump configuration to the manufacturer part number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDF3 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDF3 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDF3 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDF3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Flap Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003ePump Air-Side \/ Centre Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eVaries according to selected configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDF3 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDF3 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDF3 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Flap Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDF3 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePump Air-Side \/ Centre Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminium Centre — includes applicable aluminium and current stainless-steel wetted configurations\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.247.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.251.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e Current HDF3\/HDF4 Aluminium and Stainless Steel manuals list 476.247.000. The Cast Iron HDF3\/HDF4 manual lists 476.251.000.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDF3 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDF3 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDF3 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDF3 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDF3?\u003c\/summary\u003e\u003cp\u003eCurrent HDF3\/HDF4 Aluminium and Stainless Steel manuals list 476.247.000. The Cast Iron HDF3\/HDF4 manual lists 476.251.000. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDF3 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDF3 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDF3 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDF3 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Aluminium Centre — includes applicable aluminium and current stainless-steel wetted configurations","offer_id":53061026676917,"sku":"476.247.000","price":0.0,"currency_code":"MYR","in_stock":true},{"title":"Cast Iron Centre","offer_id":53061026709685,"sku":"476.251.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/4f904e10-16c7-47fb-b9da-d86fdf08e0ef.png?v=1789980514"},{"product_id":"sandpiper-hdf4-air-end-kit","title":"Sandpiper HDF4 4\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps","description":"\u003cdiv class=\"sp-airend-desc\"\u003e\n\u003cstyle\u003e\n.sp-airend-desc{\n  --sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;\n  --sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;\n  max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;\n  color:var(--sp-text);line-height:1.65;\n}\n.sp-airend-desc *{box-sizing:border-box;}\n.sp-airend-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-airend-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-airend-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-airend-desc p{margin:0 0 14px;font-size:15px;}\n.sp-airend-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-airend-desc li{margin-bottom:7px;}\n.sp-eyebrow{display:inline-block;color:var(--sp-blue);background:var(--sp-blue-light);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:6px 11px;border-radius:20px;margin-bottom:12px;}\n.sp-intro{font-size:16px!important;color:var(--sp-muted);max-width:880px;margin-bottom:22px!important;}\n.sp-atomic-answer{font-size:16px!important;background:var(--sp-blue-soft);border-left:4px solid var(--sp-blue);padding:18px 20px;border-radius:0 8px 8px 0;margin:0 0 28px!important;}\n.sp-overview-wrap{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:28px;align-items:start;margin:24px 0 28px;}\n.sp-ideal-for{background:var(--sp-blue-soft);border:1px solid #dfe5f5;border-radius:12px;padding:22px;}\n.sp-ideal-for h4{font-size:16px;margin-bottom:12px;}\n.sp-benefit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:22px 0 38px;}\n.sp-benefit-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:var(--sp-white);}\n.sp-benefit-number{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:var(--sp-blue-light);color:var(--sp-blue);border-radius:50%;font-size:13px;font-weight:700;margin-bottom:13px;}\n.sp-benefit-card p{font-size:14px;color:var(--sp-muted);margin:0;}\n.sp-table-wrap{overflow-x:auto;margin:18px 0 38px;border:1px solid var(--sp-border);border-radius:10px;}\n.sp-spec-table,.sp-part-table{width:100%;border-collapse:collapse;font-size:14px;min-width:580px;}\n.sp-spec-table th,.sp-spec-table td,.sp-part-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--sp-border);vertical-align:top;}\n.sp-spec-table th{width:34%;color:var(--sp-blue);background:#f8f9fc;font-weight:700;}\n.sp-part-table th{background:var(--sp-blue);color:#fff;padding:12px 14px;text-align:left;}\n.sp-part-table tr:nth-child(even) td{background:#f8f9fc;}\n.sp-note{border-left:4px solid var(--sp-blue);background:var(--sp-blue-soft);padding:16px 18px;margin:18px 0 34px;border-radius:0 8px 8px 0;font-size:14px;}\n.sp-faq{border-top:1px solid var(--sp-border);margin-bottom:36px;}\n.sp-faq details{border-bottom:1px solid var(--sp-border);}\n.sp-faq summary{cursor:pointer;list-style:none;color:var(--sp-blue);font-size:15px;font-weight:700;padding:17px 34px 17px 4px;position:relative;}\n.sp-faq summary::-webkit-details-marker{display:none;}\n.sp-faq summary:after{content:\"+\";position:absolute;right:5px;top:14px;font-size:22px;font-weight:400;}\n.sp-faq details[open] summary:after{content:\"−\";}\n.sp-faq details p{padding:0 4px 17px;color:var(--sp-muted);font-size:14px;}\n.sp-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin:20px 0 38px;}\n.sp-related-card{border:1px solid var(--sp-border);border-radius:10px;padding:20px;background:#fff;display:flex;flex-direction:column;min-height:180px;}\n.sp-related-label{display:inline-block;width:max-content;color:var(--sp-blue);background:var(--sp-blue-light);padding:5px 9px;border-radius:16px;font-size:11px;font-weight:700;margin-bottom:12px;}\n.sp-related-card h4{font-size:16px;margin-bottom:8px;}\n.sp-related-card p{color:var(--sp-muted);font-size:13px;flex-grow:1;}\n.sp-related-card a{color:var(--sp-blue);font-size:13px;font-weight:700;text-decoration:none;}\n.sp-help-banner{background:var(--sp-blue);color:#fff;border-radius:12px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;}\n.sp-help-banner h3{color:#fff;margin:0 0 7px;font-size:20px;}\n.sp-help-banner p{color:#e4e9f8;font-size:14px;margin:0;max-width:660px;}\n.sp-cta-links{display:flex;gap:10px;flex-wrap:wrap;}\n.sp-cta-links a{background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 22px;border-radius:25px;}\n@media(max-width:760px){.sp-airend-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-cta-links{width:100%;}.sp-cta-links a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\u003ch2\u003eSandpiper HDF4 4\" Air End Kit for Metallic Heavy Duty Flap Valve AODD Pumps\u003c\/h2\u003e\n\u003cp class=\"sp-intro\"\u003eGenuine Sandpiper Air End Kit replacement parts for compatible HDF4 4\" Metallic Heavy Duty Flap Valve AODD pumps. Confirm the complete pump identification and applicable air-side configuration before selecting the manufacturer part number.\u003c\/p\u003e\n\u003cp class=\"sp-atomic-answer\"\u003eThe \u003cstrong\u003eSandpiper HDF4 Air End Kit\u003c\/strong\u003e services the air distribution side of compatible Metallic Heavy Duty Flap Valve AODD pumps. Manufacturer documentation lists configuration-specific Air End Kit selections, including \u003cstrong\u003e476.247.000\u003c\/strong\u003e and \u003cstrong\u003e476.251.000\u003c\/strong\u003e. Match the installed pump configuration to the manufacturer part number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n  \u003cdiv class=\"sp-overview-main\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSandpiper HDF4 Air End Kit\u003c\/strong\u003e is intended for servicing the air distribution system of compatible HDF4 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\n    \u003cp\u003eFor the manufacturer-listed configuration on this page, the kit contents include sleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/p\u003e\n    \u003cp\u003eThe correct kit should be selected from the complete pump model, nameplate information, air-side configuration and exact Sandpiper manufacturer part number. The wetted material or nominal pump size alone should not be used as the only selection criteria.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eScheduled HDF4 air-side maintenance\u003c\/li\u003e\n      \u003cli\u003eAir distribution system servicing\u003c\/li\u003e\n      \u003cli\u003eMain air valve and pilot valve service work\u003c\/li\u003e\n      \u003cli\u003eExact manufacturer part-number replacement\u003c\/li\u003e\n      \u003cli\u003eCritical maintenance spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSandpiper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Model\u003c\/th\u003e\n\u003ctd\u003eHDF4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Flap Valve AODD Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAir End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Pump Construction\u003c\/th\u003e\n\u003ctd\u003eMetallic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Basis\u003c\/th\u003e\n\u003ctd\u003ePump Air-Side \/ Centre Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir End Kit Contents\u003c\/th\u003e\n\u003ctd\u003eSleeve and spool set, pilot valve body assembly, bumpers, bushings, gaskets, O-rings, seals and plungers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eVaries according to selected configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDF4 Air End Kit\u003c\/h3\u003e\n\u003cp\u003eConfirm the complete HDF4 pump identification before ordering. Do not select an Air End Kit from pump size, diaphragm material or wetted construction alone when the manufacturer provides configuration-specific air-side parts.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Model\u003c\/h4\u003e\n\u003cp\u003eVerify the complete Sandpiper HDF4 pump model from the nameplate.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eConfirm Pump Family\u003c\/h4\u003e\n\u003cp\u003eCheck that this page matches the Metallic Heavy Duty Flap Valve pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eCheck Air-Side Configuration\u003c\/h4\u003e\n\u003cp\u003eIdentify the applicable centre, air-valve, sleeve\/spool or other manufacturer-defined air-side option.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eVerify Part Number\u003c\/h4\u003e\n\u003cp\u003eMatch the installed configuration to the exact genuine Sandpiper Air End Kit part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDF4 Air End Kit Part Numbers\u003c\/h3\u003e\n\u003cdiv class=\"sp-table-wrap\"\u003e\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePump Air-Side \/ Centre Configuration\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminium Centre — includes applicable aluminium and current stainless-steel wetted configurations\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.247.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Centre\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e476.251.000\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eConfiguration Note:\u003c\/strong\u003e Current HDF3\/HDF4 Aluminium and Stainless Steel manuals list 476.247.000. The Cast Iron HDF3\/HDF4 manual lists 476.251.000.\u003c\/div\u003e\n\u003cdiv class=\"sp-note\"\u003e\n\u003cstrong\u003eSelection Note:\u003c\/strong\u003e Confirm the complete pump model, serial details, air-side configuration and existing manufacturer part number before ordering. Earlier revisions, converted centre sections or special air-valve options may require additional verification.\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Air End Kits?\u003c\/h3\u003e\n\u003cp\u003eGenuine Sandpiper Air End Kits are manufacturer-listed service components for compatible Sandpiper AODD pump air distribution systems. Matching the exact pump configuration and manufacturer part number helps maintenance and purchasing teams identify the correct service kit for the installed pump.\u003c\/p\u003e\n\u003cdiv class=\"sp-benefit-grid\"\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch4\u003eCorrect Pump Compatibility\u003c\/h4\u003e\n\u003cp\u003eSelect the kit according to the verified HDF4 air-side configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch4\u003eAir-Side Service Components\u003c\/h4\u003e\n\u003cp\u003eUse the manufacturer-listed kit intended for the applicable air distribution system.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch4\u003eExact Part Identification\u003c\/h4\u003e\n\u003cp\u003eOrder using the complete manufacturer kit number rather than pump size alone.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-benefit-card\"\u003e\n\u003cdiv class=\"sp-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch4\u003eGenuine Sandpiper Replacement Parts\u003c\/h4\u003e\n\u003cp\u003eMaintain compatible pumps using genuine manufacturer service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should the HDF4 Air End Be Inspected?\u003c\/h3\u003e\n\u003cp\u003eInspect the air distribution system during planned maintenance and whenever pump cycling or air-side operation indicates that inspection or servicing may be required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pump will not cycle or cycles inconsistently\u003c\/li\u003e\n  \u003cli\u003eThe pump stalls or operates sluggishly\u003c\/li\u003e\n  \u003cli\u003eAir-side seals, O-rings or gaskets show wear or damage\u003c\/li\u003e\n  \u003cli\u003eThe main air valve or pilot valve requires servicing\u003c\/li\u003e\n  \u003cli\u003eThe pump is undergoing scheduled air-side maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is the Sandpiper HDF4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eIt is a genuine manufacturer-listed service kit for the air distribution side of compatible Sandpiper HDF4 Heavy Duty Flap Valve AODD pumps.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich Air End Kit fits the Sandpiper HDF4?\u003c\/summary\u003e\u003cp\u003eCurrent HDF3\/HDF4 Aluminium and Stainless Steel manuals list 476.247.000. The Cast Iron HDF3\/HDF4 manual lists 476.251.000. Confirm the complete pump identification before ordering.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes diaphragm material determine the HDF4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eNo. Diaphragm material is a wet-end selection and does not by itself identify the correct Air End Kit. Use the manufacturer-defined air-side configuration and exact part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I select the Air End Kit by pump size alone?\u003c\/summary\u003e\u003cp\u003eNo. Pumps of the same nominal size can belong to different Sandpiper families or use different air-side configurations. Verify the complete model and manufacturer part number.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct HDF4 Air End Kit?\u003c\/summary\u003e\u003cp\u003eCheck the complete pump model and serial details on the nameplate, identify the applicable air-side configuration and compare it with the current Sandpiper service manual. ABS Engineering can assist with part verification.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Air End Kits\u003c\/h3\u003e\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Flap Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Flap Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eBrowse genuine Sandpiper Air End Kits for compatible Heavy Duty Flap Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-flap-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball Valve\u003c\/span\u003e\u003ch4\u003eHeavy Duty Ball Valve Air End Kits\u003c\/h4\u003e\n\u003cp\u003eExplore genuine Sandpiper Air End Kits for compatible Heavy Duty Ball Valve AODD pump models.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-air-end-kits\"\u003eView Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-help-banner\"\u003e\n  \u003cdiv\u003e\n\u003ch3\u003eNeed Help Selecting the Correct HDF4 Air End Kit?\u003c\/h3\u003e\n\u003cp\u003eSend ABS Engineering your complete Sandpiper HDF4 pump model, serial number, air-side configuration and existing Air End Kit or air-valve part number for part verification.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-cta-links\"\u003e\n\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"\/vi\/pages\/contact\"\u003eRequest Part Verification\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Aluminium Centre — includes applicable aluminium and current stainless-steel wetted configurations","offer_id":53061270208693,"sku":"476.247.000","price":0.0,"currency_code":"MYR","in_stock":true},{"title":"Cast Iron Centre","offer_id":53061270241461,"sku":"476.251.000","price":0.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/4f904e10-16c7-47fb-b9da-d86fdf08e0ef.png?v=1789980514"}],"url":"https:\/\/store.abset.com\/vi\/collections\/sandpiper-heavy-duty-aodd-pump-air-end-kits.oembed","provider":"ABS Engineering \u0026 Trading Sdn Bhd","version":"1.0","type":"link"}