Description
Sandpiper HDB3 3" Heavy Duty Ball Valve AODD Pump Diaphragm for Metallic Pumps
Genuine Sandpiper replacement diaphragms for compatible HDB3 3-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 HDB3 diaphragm is a genuine replacement wet-end component for compatible 3-inch Heavy Duty Ball Valve air-operated double diaphragm pumps.
Current HDB3 Design Level 4 pumps use cast iron or stainless steel wetted construction. Pump wetted construction and diaphragm material are separate specifications.
The current individual parts list identifies Nitrile, FKM, EPDM and Neoprene diaphragms together with a PTFE overlay and designated Santoprene or Neoprene PTFE backup diaphragms.
Recommended For
- HDB3 diaphragm replacement
- Heavy Duty Ball wet-end servicing
- Scheduled pump maintenance
- PTFE diaphragm component replacement
- Plant spare-parts stock
Compatibility & Product Details
| Brand | Sandpiper |
|---|---|
| Compatible Pump Model | Sandpiper HDB3 |
| Pump Series | Heavy Duty Ball Valve |
| Nominal Pump Size | 3" / 80 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 HDB3 Diaphragm
Confirm the complete HDB3 pump identification and existing diaphragm configuration before ordering. PTFE configurations require both the correct overlay and applicable backup diaphragm.
Confirm Pump Model
Verify that the pump is an HDB3 Heavy Duty Ball Valve model.
Check Design Level
Confirm the Design Level before selecting replacement components.
Select Diaphragm Material
Select the applicable standalone diaphragm or PTFE configuration.
Verify Part Number
Match each required component to its Sandpiper manufacturer part number.
Sandpiper HDB3 Diaphragm Part Numbers
Use the table below to identify the current individually listed HDB3 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 HDB3 configuration, material and manufacturer part number.
Correct HDB3 Compatibility
Match the replacement component to the applicable HDB3 configuration.
Verified Part Numbers
Use current individually listed diaphragm component numbers.
PTFE Component Clarity
Distinguish the PTFE overlay from its required backup diaphragm.
Genuine Sandpiper Replacement Part
Use genuine manufacturer components intended for the pump configuration.
When Should a Sandpiper HDB3 Diaphragm Be Inspected?
Inspect HDB3 diaphragm components during planned wet-end maintenance and when 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 condition requires inspection
- Unexpected pump behaviour occurs
- Scheduled wet-end maintenance is due
Frequently Asked Questions
Which standalone diaphragm materials are listed for the HDB3?
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.
What is Sandpiper part number 286.048.354?
286.048.354 is identified as a Santoprene backup diaphragm for use with the PTFE overlay.
What is Sandpiper part number 286.048.365?
286.048.365 is identified as a Neoprene backup diaphragm for use with the PTFE overlay.
Can 286.048.354 be sold as the normal Santoprene HDB3 diaphragm?
The current individual parts table identifies this part specifically as a PTFE backup diaphragm. Standalone Santoprene compatibility should therefore be verified before listing it as a normal material variant.
Explore Other Sandpiper Heavy Duty Ball Valve Diaphragms
HDB2 / HDB50 Diaphragm
Browse genuine diaphragms for HDB2 / HDB50 pumps.
View HDB2 / HDB50 →HDB1½ / HDB40 Diaphragm
Explore genuine diaphragms for HDB1½ / HDB40 pumps.
View HDB1½ / HDB40 →All Heavy Duty Ball Diaphragms
Browse all Heavy Duty Ball Valve diaphragm products.
View Collection →Need Help Selecting the Correct HDB3 Diaphragm?
Send ABS Engineering your pump model, design level, existing diaphragm part number, pumped fluid and operating conditions.