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Sandpiper S20 2" Standard Duty AODD Pump Check Balls for Metallic Pumps
Genuine Sandpiper check ball replacement parts for compatible S20 2" Standard Duty AODD pumps with Metallic pump construction. The pump construction identifies the compatible product family; select the actual check-ball material or type separately from the manufacturer-listed options below.
The Sandpiper S20 check balls form part of the pump’s wet-end one-way check-valve system. As the diaphragms cycle, each check ball moves against its valve seat to help control the direction of fluid flow. The correct replacement depends on the exact pump model, configuration, material and manufacturer part number.
Product Overview
The Sandpiper S20 check ball is a wet-end replacement component for compatible S20 2" Standard Duty AODD pumps with Metallic pump construction using a ball-type check valve.
Correct seating between the check ball and check-valve seat is important to check-valve operation. During maintenance, check balls should be inspected for wear or damage and matched to the applicable Sandpiper part number.
Available check-ball options for this configuration include Buna (Nitrile), Buna (Nitrile), Santoprene, EPDM, EPDM, Neoprene, Neoprene, PTFE. Material compatibility must be checked for the pumped fluid, and pump size alone should not be used to select the replacement part. This model also has manufacturer-listed weighted check-ball options; select a weighted variant only where the installed pump configuration and application have been verified.
Recommended For
- Scheduled wet-end maintenance
- Replacement of worn or damaged check balls
- Check-valve inspection and servicing
- Material-specific replacement
- Critical maintenance spare-parts stock
Compatibility & Product Details
| Brand | Sandpiper |
|---|---|
| Compatible Pump Model | S20 |
| Pump Series | Standard Duty AODD Pump |
| Nominal Pump Size | 2" |
| Part Type | Check Ball |
| Compatible Pump Construction | Metallic |
| Check Valve Type | Ball check valve |
| Manufacturer-Listed Pump Quantity | 4 check balls used per pump |
| Selection Basis | Complete pump identification / check-ball material or type / manufacturer part number |
| Manufacturer-Listed Options | Buna (Nitrile), Buna (Nitrile), Santoprene, EPDM, EPDM, Neoprene, Neoprene, PTFE |
How to Select the Correct S20 Check Ball
Confirm the complete pump identification before ordering. Match the check ball to the exact pump construction, manufacturer-listed material or type and Sandpiper part number.
Confirm Pump Model
Verify that the installed pump is a Sandpiper S20 2" Standard Duty AODD pump.
Confirm Construction
Confirm that the installed pump has Metallic pump construction before using this part-number list.
Identify Material & Type
Match the installed check-ball material and, where manufacturer-listed, confirm whether a standard or weighted check ball is required.
Verify Part Number
Confirm the exact Sandpiper manufacturer part number against the applicable current service documentation before ordering.
Sandpiper S20 Check Ball Part Numbers
| Check Ball Material / Type | Manufacturer Part Number |
|---|---|
| Standard – Buna (Nitrile) | 050.017.360 |
| Weighted – Buna (Nitrile) | 050.017.360W |
| Standard – Santoprene | 050.017.354 |
| Standard – EPDM | 050.017.364 |
| Weighted – EPDM | 050.017.364W |
| Standard – Neoprene | 050.017.365 |
| Weighted – Neoprene | 050.017.365W |
| Standard – PTFE | 050.018.600 |
Why Choose Genuine Sandpiper Check Balls?
Genuine Sandpiper check balls are manufacturer-listed replacement components for compatible Sandpiper AODD pump wet ends. Matching the exact pump identification, material or type and manufacturer part number helps maintenance and purchasing teams identify the correct replacement component.
Correct Pump Compatibility
Select the check ball using the verified S20 pump configuration rather than nominal size alone.
Material & Type Selection
Choose only from the material and check-ball types listed for the applicable pump configuration.
Exact Part Identification
Use the Sandpiper manufacturer part number to support accurate replacement-part identification.
Genuine Sandpiper Replacement Part
Maintain compatible Sandpiper pumps using genuine manufacturer replacement components.
When Should S20 Check Balls Be Inspected?
Inspect the wet-end check valves during planned maintenance and whenever pump operation indicates that the check-valve components may require inspection.
- The check-ball surface shows cuts, abrasion or other visible wear
- Foreign or embedded material prevents the ball from seating correctly
- The mating check-valve seat shows wear or damage
- Pump priming or check-valve sealing requires investigation
- The pump is undergoing scheduled wet-end maintenance
Frequently Asked Questions
What is the Sandpiper S20 check ball?
It is a wet-end check-valve component used in compatible Sandpiper S20 Standard Duty AODD pumps. The ball moves against the check-valve seat as the pump cycles to help control one-way fluid flow.
Which check-ball materials are listed for this S20 configuration?
The listed options are Buna (Nitrile), Buna (Nitrile), Santoprene, EPDM, EPDM, Neoprene, Neoprene, PTFE. Availability is model- and configuration-specific, so verify the exact manufacturer part number before ordering.
Does the S20 use standard and weighted check balls?
The current Sandpiper service manual lists both standard and weighted check-ball part numbers for selected materials on this pump. Use only the manufacturer-listed type confirmed for the installed pump and application.
Are check-valve seats included with these check balls?
The check balls and check-valve seats are listed as separate replacement components in the service parts information. Do not assume a seat is included unless the supplied product or manufacturer kit specifically states this.
How do I confirm the correct S20 check ball?
Check the complete pump model and construction, identify the installed check-ball material or type, and verify the corresponding Sandpiper manufacturer part number against the applicable current service manual.
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