Heavy Duty Flap

HDF2 Metallic

2″ NPT
0 to 208 gpm (787 lpm)

HDF3-A / 4-A Metallic

3″ & 4″ ANSI
0 to 310 gpm (1173 lpm)

HDF3-M / 4-M Metallic

3″ & 4″ ANSI
0 to 303 gpm (1147 lpm)

SA1 Metallic

1″ NPT / BSP
0 to 42 gpm (159 lpm)

HD20F Non-Metallic

2″ NPT / BSP
0 to 150 gpm (567 lpm)

HDF1 Metallic

1″ NPT / BSP
0 to 70 gpm (265 lpm)

The solids handling workhorses of the SANDPIPER pump line

HDF Pumps are recommended for abrasive slurries, suspended and non-suspended solids and line-size solids. All SANDPIPER® Heavy Duty Flap Pumps are configured with bottom discharge porting to prevent settling solids from shortening pump life and provide superior suction lift. Most HDF pumps are thick wall constructed of Sand Casted Aluminum, Cast Iron and Stainless Steel with elastomer and TPE (thermal plastic elastomer) diaphragms and check valves. See Individual pump descriptions for more detail.

Durable Diaphragm Connecting Rods

Reliable and consistent diaphragm control

Light Weight & Portable

Weights range from 48 lbs (21 kg)

ESADS + Plus Air Valve

Externally Serviceable Air Distribution System

Bottom Discharge

For pumping out of tough areas

Flap Check Valves

Provides large solid abilities

All Bolted Construction

Durable & high pressure capable

Dynamic Manifold Connections

90° – 180° rotation options

Solids Range

+1” (25mm) to 3” (76mm)

Superior Dry Prime

Up to 24 ft (7 m) of water

Certifications Available

CE, ATEX and ABS