HDF1 AODD Heavy Duty Flap Metallic Pump | Sandpiper

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. HDF1 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 tabs below for a complete description.


Port Size
HDF1: 1” NPT
HDF25: 1” BSP (Tapered)
0 to 70 gpm (265 lpm)
Air Distribution Valve
No-lube, no-stall design
Up to 1″ (25.4 mm)
Heads Up To
125 psi or 289 ft. of water (8.6 bar or 88 meters)
.10 gallons (.38 liters)
Max Operating Pressure
125 psi (8.6 bar)
Shipping Weight
Aluminum: 48 lbs. (21 kg)
Cast Iron: 76 lbs. (34 kg)
Stainless Steel: 79 lbs. (36 kg)

Click here for HDF1 Metallic Data Sheet.