{"product_id":"sandpiper-hdb4-heavy-duty-ball-diaphragm","title":"Sandpiper HDB4 4\" Heavy Duty Ball Valve AODD Pump Diaphragm for Metallic Pumps","description":"\u003cdiv class=\"sp-diaphragm-desc\"\u003e\n\n\u003cstyle\u003e\n.sp-diaphragm-desc{--sp-blue:#1e3a8a;--sp-blue-light:#eef2ff;--sp-blue-soft:#f7f9ff;--sp-text:#2b2f38;--sp-muted:#626977;--sp-border:#e1e5ec;--sp-white:#ffffff;max-width:1100px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;color:var(--sp-text);line-height:1.65;}\n.sp-diaphragm-desc *{box-sizing:border-box;}\n.sp-diaphragm-desc h2{color:var(--sp-blue);font-size:27px;line-height:1.3;margin:0 0 12px;}\n.sp-diaphragm-desc h3{color:var(--sp-blue);font-size:21px;line-height:1.35;margin:38px 0 14px;}\n.sp-diaphragm-desc h4{color:var(--sp-blue);font-size:15px;line-height:1.4;margin:0 0 8px;}\n.sp-diaphragm-desc p{margin:0 0 14px;font-size:15px;}\n.sp-diaphragm-desc ul{margin:0;padding-left:20px;font-size:15px;}\n.sp-diaphragm-desc 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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 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a{flex-shrink:0;background:#fff;color:var(--sp-blue);text-decoration:none;font-weight:700;font-size:14px;padding:12px 24px;border-radius:25px;}\n@media(max-width:760px){.sp-diaphragm-desc h2{font-size:23px;}.sp-overview-wrap{grid-template-columns:1fr;}.sp-help-banner a{width:100%;text-align:center;}}\n\u003c\/style\u003e\n\n\u003cspan class=\"sp-eyebrow\"\u003eGenuine Sandpiper Replacement Part\u003c\/span\u003e\n\n\u003ch2\u003eSandpiper HDB4 4\" Heavy Duty Ball Valve AODD Pump Diaphragm for Metallic Pumps\u003c\/h2\u003e\n\n\u003cp class=\"sp-intro\"\u003e\n  Genuine Sandpiper replacement diaphragms for compatible HDB4\n  4-inch Heavy Duty Ball Valve AODD pumps. Current individually\n  listed diaphragm materials include Nitrile, FKM, EPDM,\n  Neoprene and PTFE-related diaphragm components.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\n\u003cdiv class=\"sp-overview-wrap\"\u003e\n\n  \u003cdiv class=\"sp-overview-main\"\u003e\n\n    \u003cp\u003e\n      The \u003cstrong\u003eSandpiper HDB4 diaphragm\u003c\/strong\u003e is a genuine\n      replacement wet-end component for compatible 4-inch Heavy\n      Duty Ball Valve air-operated double diaphragm pumps.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Current HDB4 Design Level 4 pumps use cast iron or stainless\n      steel wetted construction. Pump wetted construction and\n      diaphragm material are separate specifications.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Current Sandpiper parts documentation identifies Nitrile,\n      FKM, EPDM and Neoprene diaphragms together with a PTFE\n      overlay and designated PTFE backup diaphragms.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"sp-ideal-for\"\u003e\n    \u003ch4\u003eRecommended For\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003eHDB4 diaphragm replacement\u003c\/li\u003e\n      \u003cli\u003eHeavy Duty Ball wet-end servicing\u003c\/li\u003e\n      \u003cli\u003eScheduled pump maintenance\u003c\/li\u003e\n      \u003cli\u003ePTFE diaphragm component replacement\u003c\/li\u003e\n      \u003cli\u003eCritical plant spare-parts stock\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Product Details\u003c\/h3\u003e\n\n\u003cdiv class=\"sp-table-wrap\"\u003e\n\u003ctable class=\"sp-spec-table\"\u003e\n\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\u003eSandpiper HDB4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Series\u003c\/th\u003e\n\u003ctd\u003eHeavy Duty Ball Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Pump Size\u003c\/th\u003e\n\u003ctd\u003e4\" \/ 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eAODD Pump Diaphragm\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\u003eWetted Material Options\u003c\/th\u003e\n\u003ctd\u003eCast Iron and Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiaphragm Materials\u003c\/th\u003e\n\u003ctd\u003eNitrile, FKM, EPDM, Neoprene and PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePTFE Diaphragm Construction\u003c\/th\u003e\n\u003ctd\u003ePTFE Overlay with applicable backup diaphragm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent Design Level\u003c\/th\u003e\n\u003ctd\u003eDesign Level 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eVaries according to diaphragm material and configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eHow to Select the Correct HDB4 Diaphragm\u003c\/h3\u003e\n\n\u003cp\u003e\n  Confirm the HDB4 pump model, Design Level, existing diaphragm\n  material and manufacturer part number. PTFE configurations\n  require verification of both the overlay and backup diaphragm.\n\u003c\/p\u003e\n\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 that the pump is a Sandpiper HDB4 Heavy Duty Ball Valve pump.\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\u003eCheck Design Level\u003c\/h4\u003e\n\u003cp\u003eConfirm Design Level 4 identification against the applicable pump documentation.\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\u003eSelect Diaphragm Material\u003c\/h4\u003e\n\u003cp\u003eSelect the applicable standalone diaphragm or PTFE component configuration.\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 each replacement component to the genuine Sandpiper manufacturer number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eSandpiper HDB4 Diaphragm Part Numbers\u003c\/h3\u003e\n\n\u003cp\u003eUse the table below to identify the current individually listed HDB4 diaphragm components.\u003c\/p\u003e\n\n\u003cdiv class=\"sp-table-wrap\"\u003e\n\u003ctable class=\"sp-part-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDiaphragm Material \/ Construction\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\u003eNitrile\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.014.360\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFKM\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.014.363\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEPDM\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.014.364\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeoprene\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.014.365\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePTFE Overlay Diaphragm\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.047.604\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSantoprene Backup for PTFE Overlay\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.048.354\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeoprene Backup for PTFE Overlay\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e286.048.365\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-note\"\u003e\n  \u003cstrong\u003eImportant:\u003c\/strong\u003e\n  These parts are based on current HDB3 \/ HDB4 Design Level 4\n  manufacturer documentation. Confirm the complete HDB4\n  identification and existing diaphragm configuration before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-note\"\u003e\n  \u003cstrong\u003ePTFE Selection Note:\u003c\/strong\u003e\n  Part number 286.047.604 is the PTFE overlay diaphragm.\n  Parts 286.048.354 and 286.048.365 are listed as backup\n  diaphragms for use with the PTFE overlay.\n\u003c\/div\u003e\n\n\u003cdiv class=\"sp-note\"\u003e\n  \u003cstrong\u003eSantoprene Verification Note:\u003c\/strong\u003e\n  Although the pump nomenclature includes a Santoprene\n  configuration, 286.048.354 is specifically identified as a\n  PTFE backup diaphragm in the current individual parts table.\n  Verify a standalone Santoprene part number before creating\n  a separate Shopify Santoprene variant.\n\u003c\/div\u003e\n\n\u003ch3\u003eWhy Choose Genuine Sandpiper Diaphragms?\u003c\/h3\u003e\n\n\u003cp\u003e\n  Genuine Sandpiper diaphragm components allow maintenance\n  teams to match replacement parts to the applicable HDB4\n  configuration and manufacturer part number.\n\u003c\/p\u003e\n\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 HDB4 Compatibility\u003c\/h4\u003e\n\u003cp\u003eMatch the replacement component to the applicable HDB4 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\u003eVerified Part Numbers\u003c\/h4\u003e\n\u003cp\u003eUse current individually listed manufacturer diaphragm component numbers.\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\u003ePTFE Component Clarity\u003c\/h4\u003e\n\u003cp\u003eIdentify the PTFE overlay separately from its backup diaphragm.\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 Part\u003c\/h4\u003e\n\u003cp\u003eUse genuine manufacturer components intended for the pump configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhen Should a Sandpiper HDB4 Diaphragm Be Inspected?\u003c\/h3\u003e\n\n\u003cp\u003e\n  Inspect HDB4 diaphragm components during planned wet-end\n  maintenance and whenever diaphragm wear or failure is suspected.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProcess fluid is detected at the pump exhaust\u003c\/li\u003e\n  \u003cli\u003eVisible diaphragm wear or damage is found\u003c\/li\u003e\n  \u003cli\u003eA diaphragm rupture is suspected\u003c\/li\u003e\n  \u003cli\u003ePTFE overlay or backup diaphragm requires inspection\u003c\/li\u003e\n  \u003cli\u003eUnexpected pump behaviour occurs\u003c\/li\u003e\n  \u003cli\u003eScheduled wet-end maintenance is due\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cdiv class=\"sp-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich standalone diaphragm materials are listed for the HDB4?\u003c\/summary\u003e\u003cp\u003eThe current individual parts list identifies Nitrile, FKM, EPDM and Neoprene standalone diaphragms, together with PTFE-related components.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat is Sandpiper part number 286.047.604?\u003c\/summary\u003e\u003cp\u003e286.047.604 is the PTFE overlay diaphragm.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhich backup diaphragms are used with the HDB4 PTFE overlay?\u003c\/summary\u003e\u003cp\u003eThe current individual parts list identifies 286.048.354 Santoprene and 286.048.365 Neoprene as backup diaphragms for PTFE overlay configurations.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDo HDB3 and HDB4 use the same diaphragm component family?\u003c\/summary\u003e\u003cp\u003eThe current Sandpiper service manual covers HDB3 and HDB4 together and lists the diaphragm components above in the shared parts list.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I select the correct HDB4 diaphragm?\u003c\/summary\u003e\u003cp\u003eConfirm the pump model, Design Level, existing diaphragm configuration and manufacturer part number before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align:center;\"\u003eExplore Other Sandpiper Heavy Duty Ball Valve Diaphragms\u003c\/h3\u003e\n\n\u003cdiv class=\"sp-related-grid\"\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003e3\" Heavy Duty\u003c\/span\u003e\u003ch4\u003eHDB3 Diaphragm\u003c\/h4\u003e\n\u003cp\u003eBrowse diaphragm components for Sandpiper HDB3 pumps.\u003c\/p\u003e\n\u003ca href=\"\/vi\/products\/sandpiper-hdb3-heavy-duty-ball-diaphragm\"\u003eView HDB3 →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003e2\" Heavy Duty\u003c\/span\u003e\u003ch4\u003eHDB2 \/ HDB50 Diaphragm\u003c\/h4\u003e\n\u003cp\u003eExplore genuine diaphragms for HDB2 \/ HDB50 pumps.\u003c\/p\u003e\n\u003ca href=\"\/vi\/products\/sandpiper-hdb2-hdb50-heavy-duty-ball-diaphragm\"\u003eView HDB2 \/ HDB50 →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003e1½\" Heavy Duty\u003c\/span\u003e\u003ch4\u003eHDB1½ \/ HDB40 Diaphragm\u003c\/h4\u003e\n\u003cp\u003eFind genuine diaphragms for HDB1½ \/ HDB40 pumps.\u003c\/p\u003e\n\u003ca href=\"\/vi\/products\/sandpiper-hdb1-5-hdb40-heavy-duty-ball-diaphragm\"\u003eView HDB1½ \/ HDB40 →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"sp-related-card\"\u003e\n\u003cspan class=\"sp-related-label\"\u003eHeavy Duty Ball\u003c\/span\u003e\u003ch4\u003eAll Heavy Duty Ball Diaphragms\u003c\/h4\u003e\n\u003cp\u003eBrowse all Sandpiper Heavy Duty Ball Valve diaphragm products.\u003c\/p\u003e\n\u003ca href=\"\/vi\/collections\/sandpiper-heavy-duty-ball-valve-diaphragms\"\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 Diaphragm?\u003c\/h3\u003e\n    \u003cp\u003eSend ABS Engineering your pump model, design level, existing diaphragm part number, pumped fluid and operating conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003ca href=\"\/vi\/pages\/contact\"\u003eContact ABS Engineering\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"ABS Engineering \u0026 Trading Sdn Bhd","offers":[{"title":"Nitrile","offer_id":52982397665461,"sku":"286.014.360","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"FKM","offer_id":52982397698229,"sku":"286.014.363","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"EPDM","offer_id":52982397730997,"sku":"286.014.364","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"Neoprene","offer_id":52982397763765,"sku":"286.014.365","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"PTFE Overlay","offer_id":52982397796533,"sku":"286.047.604","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"Santoprene Backup for PTFE","offer_id":52982397829301,"sku":"286.048.354","price":0.0,"currency_code":"MYR","in_stock":false},{"title":"Neoprene Backup for PTFE","offer_id":52982397862069,"sku":"286.048.365","price":0.0,"currency_code":"MYR","in_stock":false}],"url":"https:\/\/store.abset.com\/vi\/products\/sandpiper-hdb4-heavy-duty-ball-diaphragm","provider":"ABS Engineering \u0026 Trading Sdn Bhd","version":"1.0","type":"link"}