SANDPIPER: HEAVY-DUTY FLAP VALVE AIR-OPERATED DOUBLE-DIAPHRAGM PUMP

The SANDPIPER 2″ heavy-duty flap valve pump has a proven design that solves the most common challenges in sump applications, mine dewatering and any liquid application involving solids.

This metallic air-operated double-diaphragm (AODD) pump is recommended for abrasive slurries, suspended and non-suspended solids and line-size solids. It is configured with bottom discharge porting to prevent settling solids from shortening pump life and provide superior suction lift.

HDF2 pumps are thick-wall constructed of sand-casted aluminum, cast iron and stainless steel with elastomer and TPE (thermoplastic elastomer) diaphragms and check valves.

HDF2 Features

• Port size: 2″ NPT/BSP
• Capacity: 0 to 208 gpm (787 lpm)
• Suction lifts: up to 24 ft
• Air distribution valve: no-lube, no-stall externally serviceable air distribution system (ESADS+) design
• Solids handling: up to 2″ (50 mm)
• Heads: up to 125 psi or 289 ft of water (8.6 bar or 88 meters)
• Max operating pressure: 125 psi (8.6 bar)

The HDF2 pump has been optimized for performance as part of the SANDPIPER Evolution portfolio improvement. This efficient pump experienced a 49% flow rate increase, with a new maximum flow rate of up to 208 gpm (788 lpm).

Performance Guarantees

• Diaphragm Connecting Rod Guarantee
• 5-Year Limited Product Warranty
• Anti-Stall Air Valve Guarantee