Heavy Duty Flap Pumps, Metallic & Non-Metallic

Engineered for the Most Demanding Solids-Handling Applications When your application involves large, abrasive, or fast-settling solids, you need a pump that won’t clog or wear out quickly. SANDPIPER’s Heavy Duty Flap Pumps, available in both metallic and non-metallic models, are built to move even the toughest fluids with confidence and control. These air-operated double-diaphragm (AODD) pumps are designed with a full flow-through, bottom-discharge design and swing-style flap valves that pass solids up to 3" in diameter, keeping your system running by reducing clogs and protecting components. Key Features: • Sizes: 1 - 4" sizes (25 - 102 mm) • Flow: 70 - 310 gpm (265 - 1173 lpm) • Solids Handling: 1 - 3” (25 - 76 mm) • Construction: Aluminum, Cast Iron, Stainless Steel, Polypropylene • Elastomers: (Diaphragms & Flaps) Nitrile, Neoprene, Hytrel®, Santoprene®, Fluorocarbon, EPDM, Urethane • Bottom-discharge porting clears solids efficiently, preventing buildup and wear • Dry prime suction lift up to 24 ft., 5% higher than typical ball valve pumps • Quick access to serviceable components for faster maintenance and less downtime • ESADS+Plus air distribution system allows easy in-line maintenance

Engineered for the Most Demanding Solids-Handling Applications When your application involves large, abrasive, or fast-settling solids, you need a pump that won’t clog or wear out quickly. SANDPIPER’s Heavy Duty Flap Pumps, available in both metallic and non-metallic models, are built to move even the toughest fluids with confidence and control. These air-operated double-diaphragm (AODD) pumps are designed with a full flow-through, bottom-discharge design and swing-style flap valves that pass solids up to 3" in diameter, keeping your system running by reducing clogs and protecting components. Key Features: • Sizes: 1 - 4" sizes (25 - 102 mm) • Flow: 70 - 310 gpm (265 - 1173 lpm) • Solids Handling: 1 - 3” (25 - 76 mm) • Construction: Aluminum, Cast Iron, Stainless Steel, Polypropylene • Elastomers: (Diaphragms & Flaps) Nitrile, Neoprene, Hytrel®, Santoprene®, Fluorocarbon, EPDM, Urethane • Bottom-discharge porting clears solids efficiently, preventing buildup and wear • Dry prime suction lift up to 24 ft., 5% higher than typical ball valve pumps • Quick access to serviceable components for faster maintenance and less downtime • ESADS+Plus air distribution system allows easy in-line maintenance