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.

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).