Description
Sandpiper HDB4 4" Heavy Duty Ball Valve AODD Pump Diaphragm for Metallic Pumps
Genuine Sandpiper replacement diaphragms for compatible HDB4 4-inch Heavy Duty Ball Valve AODD pumps. Current individually listed diaphragm materials include Nitrile, FKM, EPDM, Neoprene and PTFE-related diaphragm components.
Product Overview
The Sandpiper HDB4 diaphragm is a genuine replacement wet-end component for compatible 4-inch Heavy Duty Ball Valve air-operated double diaphragm pumps.
Current HDB4 Design Level 4 pumps use cast iron or stainless steel wetted construction. Pump wetted construction and diaphragm material are separate specifications.
Current Sandpiper parts documentation identifies Nitrile, FKM, EPDM and Neoprene diaphragms together with a PTFE overlay and designated PTFE backup diaphragms.
Recommended For
- HDB4 diaphragm replacement
- Heavy Duty Ball wet-end servicing
- Scheduled pump maintenance
- PTFE diaphragm component replacement
- Critical plant spare-parts stock
Compatibility & Product Details
| Brand | Sandpiper |
|---|---|
| Compatible Pump Model | Sandpiper HDB4 |
| Pump Series | Heavy Duty Ball Valve |
| Nominal Pump Size | 4" / 100 mm |
| Part Type | AODD Pump Diaphragm |
| Compatible Pump Construction | Metallic |
| Wetted Material Options | Cast Iron and Stainless Steel |
| Diaphragm Materials | Nitrile, FKM, EPDM, Neoprene and PTFE |
| PTFE Diaphragm Construction | PTFE Overlay with applicable backup diaphragm |
| Current Design Level | Design Level 4 |
| Manufacturer Part Number | Varies according to diaphragm material and configuration |
How to Select the Correct HDB4 Diaphragm
Confirm the HDB4 pump model, Design Level, existing diaphragm material and manufacturer part number. PTFE configurations require verification of both the overlay and backup diaphragm.
Confirm Pump Model
Verify that the pump is a Sandpiper HDB4 Heavy Duty Ball Valve pump.
Check Design Level
Confirm Design Level 4 identification against the applicable pump documentation.
Select Diaphragm Material
Select the applicable standalone diaphragm or PTFE component configuration.
Verify Part Number
Match each replacement component to the genuine Sandpiper manufacturer number.
Sandpiper HDB4 Diaphragm Part Numbers
Use the table below to identify the current individually listed HDB4 diaphragm components.
| Diaphragm Material / Construction | Manufacturer Part Number |
|---|---|
| Nitrile | 286.014.360 |
| FKM | 286.014.363 |
| EPDM | 286.014.364 |
| Neoprene | 286.014.365 |
| PTFE Overlay Diaphragm | 286.047.604 |
| Santoprene Backup for PTFE Overlay | 286.048.354 |
| Neoprene Backup for PTFE Overlay | 286.048.365 |
Why Choose Genuine Sandpiper Diaphragms?
Genuine Sandpiper diaphragm components allow maintenance teams to match replacement parts to the applicable HDB4 configuration and manufacturer part number.
Correct HDB4 Compatibility
Match the replacement component to the applicable HDB4 configuration.
Verified Part Numbers
Use current individually listed manufacturer diaphragm component numbers.
PTFE Component Clarity
Identify the PTFE overlay separately from its backup diaphragm.
Genuine Sandpiper Replacement Part
Use genuine manufacturer components intended for the pump configuration.
When Should a Sandpiper HDB4 Diaphragm Be Inspected?
Inspect HDB4 diaphragm components during planned wet-end maintenance and whenever diaphragm wear or failure is suspected.
- Process fluid is detected at the pump exhaust
- Visible diaphragm wear or damage is found
- A diaphragm rupture is suspected
- PTFE overlay or backup diaphragm requires inspection
- Unexpected pump behaviour occurs
- Scheduled wet-end maintenance is due
Frequently Asked Questions
Which standalone diaphragm materials are listed for the HDB4?
The current individual parts list identifies Nitrile, FKM, EPDM and Neoprene standalone diaphragms, together with PTFE-related components.
What is Sandpiper part number 286.047.604?
286.047.604 is the PTFE overlay diaphragm.
Which backup diaphragms are used with the HDB4 PTFE overlay?
The current individual parts list identifies 286.048.354 Santoprene and 286.048.365 Neoprene as backup diaphragms for PTFE overlay configurations.
Do HDB3 and HDB4 use the same diaphragm component family?
The current Sandpiper service manual covers HDB3 and HDB4 together and lists the diaphragm components above in the shared parts list.
How do I select the correct HDB4 diaphragm?
Confirm the pump model, Design Level, existing diaphragm configuration and manufacturer part number before ordering.
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View Collection →Need Help Selecting the Correct HDB4 Diaphragm?
Send ABS Engineering your pump model, design level, existing diaphragm part number, pumped fluid and operating conditions.