SandPIPER 2″ HDF2 / HDF50 Flap Valve Air Operated Double Diaphragm (AODD) Pump

In pump category: SandPiper Flap Valve

The SANDPIPER 2″ HDF2 & HDF50 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 aluminium, cast iron and stainless steel with elastomer and TPE (thermoplastic elastomer) diaphragms and check valves.

Pipe Size:                                     2″ / 50mm

Displacement Per Stroke:     .43 gal / 1.60 ltr

Max. Flow per Minute:            140 gal / 530 ltr

Max. Solids Handling:            2″ / 50mm

Max. Discharge Pressure:     125 PSI / 8.6 BAR

The wetted pump casings are available in aluminium, cast iron and stainless steel.

Elastomer material options available are:

• PTFE
• Buna-N
• Viton®
• Neoprene
• Santoprene
• EPDM

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