Description
Sandpiper HDF1 / HDF25 1" Heavy Duty Flap Valve AODD Pump Diaphragm for Metallic Pumps
Genuine Sandpiper replacement diaphragms for compatible HDF1 and HDF25 1-inch Heavy Duty Flap Valve AODD pumps. Available diaphragm materials include Santoprene, Hytrel, Nitrile, FKM, EPDM and Neoprene.
Product Overview
The Sandpiper HDF1 / HDF25 diaphragm is a genuine replacement wear component for compatible 1-inch Heavy Duty Flap Valve air-operated double diaphragm pumps.
HDF1 / HDF25 pumps use metallic wetted construction. Pump wetted material and diaphragm material are separate specifications and should both be confirmed from the pump identification before ordering replacement parts.
Current Sandpiper Design Level 2 service documentation individually lists Santoprene, Hytrel, Nitrile, FKM, EPDM and Neoprene replacement diaphragms.
Recommended For
- Scheduled HDF1 / HDF25 preventive maintenance
- Worn or damaged diaphragm replacement
- Heavy Duty Flap wet-end servicing
- Diaphragm leak troubleshooting
- Maintenance spare-parts stock
Compatibility & Product Details
| Brand | Sandpiper |
|---|---|
| Compatible Pump Models | Sandpiper HDF1 / HDF25 |
| Pump Series | Heavy Duty Flap Valve |
| Nominal Pump Size | 1" / 25 mm |
| Part Type | AODD Pump Diaphragm |
| Compatible Pump Construction | Metallic |
| Diaphragm Materials | Santoprene, Hytrel, Nitrile, FKM, EPDM and Neoprene |
| Current Design Level | Design Level 2 |
| Manufacturer Part Number | Varies according to selected diaphragm material |
How to Select the Correct HDF1 / HDF25 Diaphragm
Confirm the complete pump identification before selecting a replacement diaphragm. Check the pump model, Design Level, diaphragm material and existing manufacturer part number.
Confirm Pump Model
Verify HDF1 or HDF25 on the pump identification plate.
Check Design Level
Confirm the applicable Design Level before selecting replacement components.
Select Diaphragm Material
Select the manufacturer-listed diaphragm material required for the pump configuration.
Verify Part Number
Match the selected diaphragm to the genuine Sandpiper manufacturer part number.
Sandpiper HDF1 / HDF25 Diaphragm Part Numbers
Use the table below to identify the current replacement diaphragm according to the required diaphragm material.
| Diaphragm Material | Manufacturer Part Number |
|---|---|
| Santoprene | 286.008.354 |
| Hytrel | 286.008.356 |
| Nitrile | 286.008.360 |
| FKM | 286.008.363 |
| EPDM | 286.008.364 |
| Neoprene | 286.008.365 |
Why Choose Genuine Sandpiper Diaphragms?
Genuine Sandpiper diaphragms allow maintenance teams to match the replacement component to the applicable HDF1 / HDF25 pump configuration and manufacturer part number.
Correct Pump Compatibility
Match the diaphragm to the applicable HDF1 / HDF25 configuration.
Verified Materials
Select from diaphragm materials individually listed in current manufacturer documentation.
Part Number Identification
Use the Sandpiper manufacturer part number to support accurate spare-part selection.
Genuine Sandpiper Replacement Part
Maintain the pump using genuine manufacturer spare parts intended for the applicable configuration.
When Should a Sandpiper HDF1 / HDF25 Diaphragm Be Inspected?
Inspect the diaphragms during planned wet-end maintenance and whenever abnormal pump behaviour or diaphragm damage is suspected.
- Process fluid is detected at the pump exhaust
- Visible diaphragm wear, cracking or damage is identified
- A diaphragm rupture is suspected
- Diaphragm plates require inspection
- Unexpected changes in normal pump performance occur
- Scheduled wet-end maintenance is due
Frequently Asked Questions
Which diaphragm materials are available for the Sandpiper HDF1 / HDF25?
Current Design Level 2 parts documentation individually lists Santoprene, Hytrel, Nitrile, FKM, EPDM and Neoprene diaphragms.
What is Sandpiper part number 286.008.354?
286.008.354 is the Santoprene diaphragm listed for the HDF1 / HDF25.
What is Sandpiper part number 286.008.360?
286.008.360 is the Nitrile diaphragm listed for the HDF1 / HDF25.
Is PTFE listed as an HDF1 / HDF25 replacement diaphragm?
PTFE is not individually listed as a replacement diaphragm in the current HDF1 / HDF25 Design Level 2 parts table.
How do I select the correct HDF1 / HDF25 diaphragm?
Confirm the pump model, Design Level, existing diaphragm material and manufacturer part number before ordering.
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View Collection →Need Help Selecting the Correct HDF1 / HDF25 Diaphragm?
Send ABS Engineering your Sandpiper pump model, design level, existing diaphragm part number, pumped fluid and operating conditions. Our team can assist with identifying the correct genuine Sandpiper replacement diaphragm.