Description
Sandpiper HDF4 Diaphragm Product Overview
The Sandpiper HDF4 diaphragm is a genuine replacement wear component for 4-inch Heavy Duty Flap Valve AODD pumps. Buyers should identify the pump's aluminium, cast-iron or stainless-steel wetted construction before selecting the required diaphragm material and manufacturer part number.
Correct Sandpiper HDF4 diaphragm selection is construction-specific. A diaphragm with the same material name may use a different manufacturer part number on a cast-iron pump compared with aluminium or stainless-steel versions.
Key Specifications & Compatibility
- Brand: Sandpiper
- Compatible Pump Model: HDF4
- Pump Type: Heavy Duty Flap Valve AODD Pump
- Nominal Pump Size: 4" / 100 mm
- Pump Wetted Constructions: Aluminium, Cast Iron and Stainless Steel
- Aluminium / Stainless Steel Diaphragm Materials: Santoprene, Urethane, Nitrile and Neoprene
- Cast Iron Diaphragm Materials: Santoprene, Nitrile and Neoprene
- Part Number Families: 286.018 and 286.098
- Installation Dimensions: Verify against the applicable construction-specific Sandpiper data sheet
HDF4 Diaphragm Construction & Part Number Comparison
| Pump Wetted Construction | Current Design Level | Diaphragm Material | Manufacturer Part Number |
|---|---|---|---|
| Aluminium | 3 | Santoprene | 286.018.354 |
| Aluminium | 3 | Urethane | 286.018.357 |
| Aluminium | 3 | Nitrile | 286.018.360 |
| Aluminium | 3 | Neoprene | 286.018.365 |
| Cast Iron | 2 | Santoprene | 286.098.354 |
| Cast Iron | 2 | Nitrile | 286.098.360 |
| Cast Iron | 2 | Neoprene | 286.098.365 |
| Stainless Steel | 1 | Santoprene | 286.018.354 |
| Stainless Steel | 1 | Urethane | 286.018.357 |
| Stainless Steel | 1 | Nitrile | 286.018.360 |
| Stainless Steel | 1 | Neoprene | 286.018.365 |
Common Industrial Applications & Use Cases
Sandpiper HDF4 Heavy Duty Flap Valve pumps are used for challenging solids-handling services where wet-end components may require planned inspection and replacement.
Replacement diaphragm support for large Heavy Duty Flap pumps used in dewatering service.
Maintenance of HDF4 pumps handling solids-containing sump liquids.
Wet-end replacement requirements in abrasive and slurry-transfer duties.
Maintenance applications where the HDF4 flap-valve design is used for solids-containing fluids.
Need Help Identifying Your HDF4 Diaphragm?
Provide your pump model, construction, design level, current part number and process details. ABS Engineering can assist with genuine Sandpiper part selection and the current construction-specific specification sheet.