Description
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. HDF3-M/HDF4-M pumps are thick wall constructed of Cast Iron with elastomer and TPE (thermal plastic elastomer) diaphragms and check valves. See tabs below for a complete description.
| Specification | |
| Port Size | 3" 150# ANSI Flange 4” 150# ANSI Flange |
| Capacity | 0 to 303 gpm (1147 lpm) |
| Air Distribution Valve | No-lube, no-stall design |
| Solids-Handling | Up to nearly 3" (75 mm) |
| Heads Up To | 125 psi or 289 ft. of water (8.6 bar or 88 meters) |
| Displacement/Stroke | 1.15 gallons (4.37 liters) |
| Max Operating Pressure | 125 psi (8.6 bar) |
| Shipping Weight | Cast Iron: 390 lbs. (176 kg) |
HDF3-M / HDF4-M Metallic Performance Curve
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