{"product_id":"sandpiper-hdf1-hdf25-1-25mm-heavy-duty-flap-valve-aodd-pumps","title":"SANDPIPER HDF1 \u0026 HDF25 1\" (25mm) Heavy-Duty Flap Valve AODD Pumps","description":"\u003cdiv style=\"font-family: Arial, sans-serif; color: #1f2937; line-height: 1.6;\"\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 2fr 1fr; gap: 30px; align-items: start;\"\u003e\n\u003cdiv\u003e\n\u003ch2 style=\"color: #263879; margin-bottom: 12px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe SANDPIPER HDF1 \u0026amp; HDF25 1\" (25mm) Heavy-Duty Flap Valve AODD Pumps are designed for demanding sump applications, mine dewatering, and liquid transfer duties involving solids. With a portable, lightweight, and flexible design, these air operated double diaphragm pumps deliver reliable performance where abrasive slurries, suspended solids, non-suspended solids, and line-size solids are commonly present.\u003c\/p\u003e\n\u003cp\u003eBuilt with a heavy-duty flap valve design, the HDF1 and HDF25 provide superior solids-handling capability compared to standard 1\" AODD pumps. The pump offers a flow rate of up to 265 LPM (70 GPM), best-in-class suction lift for a 1\" pump, and solids handling up to 1\" (25.4mm), making it a strong solution for sump and dewatering applications.\u003c\/p\u003e\n\u003cp\u003eThe bottom discharge porting helps prevent settling solids from damaging the diaphragm, supporting longer pump life in harsh applications. Available in sand-casted aluminum, cast iron, and stainless steel construction, these pumps are built for durability in portable and permanent industrial installations.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #263879; margin-top: 28px;\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eHeavy-duty flap valve design for large solids handling\u003c\/li\u003e\n\u003cli\u003eFlow rate up to 265 LPM (70 GPM)\u003c\/li\u003e\n\u003cli\u003eHandles solids up to 1\" (25.4mm)\u003c\/li\u003e\n\u003cli\u003eBest-in-class suction lift for a 1\" pump\u003c\/li\u003e\n\u003cli\u003eBottom discharge porting helps protect diaphragm life\u003c\/li\u003e\n\u003cli\u003eNo-lube, no-stall ESADS+ air distribution system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: #f7f9fc; padding: 24px; border-radius: 14px;\"\u003e\n\u003ch3 style=\"color: #263879; margin-top: 0;\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 0;\"\u003e\n\u003cli\u003eSump Applications\u003c\/li\u003e\n\u003cli\u003eMine Dewatering\u003c\/li\u003e\n\u003cli\u003eAbrasive Slurry Transfer\u003c\/li\u003e\n\u003cli\u003eSolids-Laden Fluids\u003c\/li\u003e\n\u003cli\u003eIndustrial Dewatering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 35px;\"\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: 14px; padding: 22px; text-align: center;\"\u003e\n\u003ch4 style=\"color: #263879;\"\u003eLarge Solids Handling\u003c\/h4\u003e\n\u003cp\u003eFlap valve design allows the pump to move suspended, non-suspended, and line-size solids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: 14px; padding: 22px; text-align: center;\"\u003e\n\u003ch4 style=\"color: #263879;\"\u003ePortable Design\u003c\/h4\u003e\n\u003cp\u003eCompact, lightweight construction supports both portable and permanent installation needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: 14px; padding: 22px; text-align: center;\"\u003e\n\u003ch4 style=\"color: #263879;\"\u003eReduced Diaphragm Damage\u003c\/h4\u003e\n\u003cp\u003eBottom discharge porting helps prevent settling solids from damaging the diaphragm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: 14px; padding: 22px; text-align: center;\"\u003e\n\u003ch4 style=\"color: #263879;\"\u003eHeavy-Duty Reliability\u003c\/h4\u003e\n\u003cp\u003eBuilt for harsh sump, slurry, and mine dewatering applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #263879; margin-top: 40px;\"\u003eCommon Industrial Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eSump pumping applications\u003c\/li\u003e\n\u003cli\u003eMine dewatering\u003c\/li\u003e\n\u003cli\u003eAbrasive slurry transfer\u003c\/li\u003e\n\u003cli\u003eSuspended solids transfer\u003c\/li\u003e\n\u003cli\u003eNon-suspended solids handling\u003c\/li\u003e\n\u003cli\u003eLine-size solids transfer\u003c\/li\u003e\n\u003cli\u003eIndustrial wastewater handling\u003c\/li\u003e\n\u003cli\u003ePortable dewatering operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #263879; margin-top: 40px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003ePump Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eSandpiper HDF1 \u0026amp; HDF25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003ePump Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eAir Operated Double Diaphragm (AODD) Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eFlap Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003ePort Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eHDF1: 1\" NPT \/ HDF25: 1\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eMaximum Flow Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eUp to 265 LPM (70 GPM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e8.6 Bar (125 PSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eSolids Handling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eUp to 1\" (25.4mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eHeads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eUp to 125 PSI or 289 ft of water (8.6 Bar or 88 meters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eDisplacement Per Stroke\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e0.10 gallons (0.38 liters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eAir Distribution System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eESADS+ No-Lube, No-Stall, Externally Serviceable Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eAvailable Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eAluminum, Cast Iron, Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #263879; margin-top: 40px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is the SANDPIPER HDF1 \u0026amp; HDF25 pump used for?\u003c\/h4\u003e\n\u003cp\u003eThese pumps are commonly used for sump applications, mine dewatering, abrasive slurry transfer, and liquid applications involving suspended, non-suspended, or line-size solids.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the difference between HDF1 and HDF25?\u003c\/h4\u003e\n\u003cp\u003eThe HDF1 uses a 1\" NPT port connection, while the HDF25 uses a 1\" BSP port connection. Both are 1\" heavy-duty metallic flap valve AODD pumps.\u003c\/p\u003e\n\n\u003ch4\u003eHow large of solids can the HDF1 and HDF25 handle?\u003c\/h4\u003e\n\u003cp\u003eThe pumps can handle solids up to 1\" (25.4mm), making them suitable for challenging solids-laden fluid applications.\u003c\/p\u003e\n\n\u003c!-- Material Options Section --\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch3 style=\"color: #263879; margin-bottom: 24px; text-align: center;\"\u003eAlso Available in Other Materials: \u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: 20px;\"\u003e\n\n\u003ca href=\"https:\/\/store.abset.com\/products\/sandpiper-hdf1-1-inch-aluminum-flap-valve-aodd-pump\" style=\"text-decoration: none; border: 1px solid #e5e7eb; border-radius: 18px; padding: 28px 24px; display: block; color: #1f2937; background: #ffffff; text-align: center;\"\u003e\n\u003cdiv style=\"margin-bottom: 18px; display: flex; justify-content: center;\"\u003e\u003csvg width=\"52\" height=\"52\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#263879\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n\u003cpath d=\"M12 2L19 21H5L12 2Z\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4 style=\"margin-top: 0; margin-bottom: 12px; color: #263879; font-size: 20px;\"\u003eAluminum\u003c\/h4\u003e\n\u003cp style=\"line-height: 1.7; font-size: 15px; margin-bottom: 20px;\"\u003eLightweight and portable option for sump, dewatering, and solids-handling applications.\u003c\/p\u003e\n\u003cspan style=\"display: inline-block; background: #263879; color: #ffffff; padding: 10px 18px; border-radius: 999px; font-size: 14px; font-weight: 600;\"\u003e Explore More \u003c\/span\u003e\u003c\/a\u003e\n\n\u003ca href=\"https:\/\/store.abset.com\/products\/sandpiper-hdf1-1-inch-cast-iron-flap-valve-aodd-pump\" style=\"text-decoration: none; border: 1px solid #e5e7eb; border-radius: 18px; padding: 28px 24px; display: block; color: #1f2937; background: #ffffff; text-align: center;\"\u003e\n\u003cdiv style=\"margin-bottom: 18px; display: flex; justify-content: center;\"\u003e\u003csvg width=\"52\" height=\"52\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#263879\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n\u003cpath d=\"M4 12H20\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M12 4V20\"\u003e\u003c\/path\u003e\n\u003ccircle cx=\"12\" cy=\"12\" r=\"8\"\u003e\u003c\/circle\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4 style=\"margin-top: 0; margin-bottom: 12px; color: #263879; font-size: 20px;\"\u003eCast Iron\u003c\/h4\u003e\n\u003cp style=\"line-height: 1.7; font-size: 15px; margin-bottom: 20px;\"\u003eHeavy-duty construction for abrasive slurry, sludge, sump, and mining dewatering applications.\u003c\/p\u003e\n\u003cspan style=\"display: inline-block; background: #263879; color: #ffffff; padding: 10px 18px; border-radius: 999px; font-size: 14px; font-weight: 600;\"\u003e Explore More \u003c\/span\u003e\u003c\/a\u003e\n\n\u003ca href=\"https:\/\/store.abset.com\/products\/sandpiper-hdf1-1-inch-stainless-steel-flap-valve-aodd-pump\" style=\"text-decoration: none; border: 1px solid #e5e7eb; border-radius: 18px; padding: 28px 24px; display: block; color: #1f2937; background: #ffffff; text-align: center;\"\u003e\n\u003cdiv style=\"margin-bottom: 18px; display: flex; justify-content: center;\"\u003e\u003csvg width=\"52\" height=\"52\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#263879\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n\u003cpath d=\"M12 2L4 7V12C4 17 7.5 21 12 22C16.5 21 20 17 20 12V7L12 2Z\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4 style=\"margin-top: 0; margin-bottom: 12px; color: #263879; font-size: 20px;\"\u003eStainless Steel\u003c\/h4\u003e\n\u003cp style=\"line-height: 1.7; font-size: 15px; margin-bottom: 20px;\"\u003eDurable corrosion-resistant option for harsh industrial fluid transfer applications.\u003c\/p\u003e\n\u003cspan style=\"display: inline-block; background: #263879; color: #ffffff; padding: 10px 18px; border-radius: 999px; font-size: 14px; font-weight: 600;\"\u003e Explore More \u003c\/span\u003e\u003c\/a\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- CTA Banner --\u003e\n\u003cdiv style=\"margin: 40px 0; padding: 32px 36px; background: linear-gradient(135deg,#263879 0%,#1f2f6d 100%); border-radius: 18px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; color: #ffffff;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 260px;\"\u003e\n\u003ch2 style=\"margin: 0 0 12px; color: #ffffff; font-size: 28px; line-height: 1.2;\"\u003eNeed Help Selecting a Heavy-Duty Flap Valve Pump?\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 16px; line-height: 1.7; color: rgba(255,255,255,0.92); max-width: 760px;\"\u003eOur engineering team can help you choose the right SANDPIPER HDF1 or HDF25 AODD pump configuration based on solids size, flow requirement, dewatering duty, material compatibility, and site operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"\/pages\/contact-us\" style=\"display: inline-block; background: #ffffff; color: #263879; padding: 14px 26px; border-radius: 999px; text-decoration: none; font-weight: bold; font-size: 15px;\"\u003e Contact Our Team \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SANDPIPER","offers":[{"title":"Default Title","offer_id":52420123754677,"sku":null,"price":0.0,"currency_code":"MYR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6168\/7989\/files\/Heavy_Duty_Ball_Valve_4.png?v=1779931321","url":"https:\/\/store.abset.com\/products\/sandpiper-hdf1-hdf25-1-25mm-heavy-duty-flap-valve-aodd-pumps","provider":"ABS Engineering \u0026 Trading Sdn Bhd","version":"1.0","type":"link"}