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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
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
Important:
Confirm the complete HDF4 model, pump wetted construction,
design level and existing diaphragm part number. Construction-specific
dimensional and flange information should be checked against the
applicable manufacturer data sheet.
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.
Mine Dewatering
Replacement diaphragm support for large Heavy Duty Flap pumps used in dewatering service.
Industrial Sumps
Maintenance of HDF4 pumps handling solids-containing sump liquids.
Abrasive Slurries
Wet-end replacement requirements in abrasive and slurry-transfer duties.
Large Solids Handling
Maintenance applications where the HDF4 flap-valve design is used for solids-containing fluids.
Need dimensional information?
Because HDF4 construction-specific manuals contain different
dimensional details, verify the exact construction before using
dimensions for installation or replacement planning.
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.
