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S20 Metallic 2″ (50mm) AODD – Ball Valve Pump

The Sandpiper 2″ S20 Evolution Metallic AODD Pump is the highest-performing and most efficient AODD pump on the market. Equipped to handle abrasive fluids and suspended solids, this versatile and mobile pump has best-in-class flow rates and the lowest air consumption available.

Material of construction options include: aluminum, cast iron and stainless steel with elastomer TPE (thermoplastic elastomers) and PTFE options in diaphragms and check valves.

S20 Benefits:
Max flow rate: The S20 is the world leader in maximum flow rate, allowing you to get your work done faster with up to 32% higher capacity.
Air consumption: The S20 requires up to 59% less air to operate, reducing the load on your compressed air system and lowering operating costs.
Air economy: SANDPIPER’s metallic standard duty pumps provide up to 2.5 times more gallons out for every cubic foot of air supplied.




  1. Serviceability: The air distribution system (ADS) is one of the most frequently serviced parts of any AODD pump. Only Sandpiper’s ESADS+ feature allows access to the complete ADS without removing the pump from service. Repair or clean in five minutes (versus 55 minutes for competitors).
  2. Simplicity: Sandpiper’s original ADS is fully interchangeable, repairable and inline-serviceable. Other manufacturers frequently change ADS designs, creating issues with interchangeability, obsolete inventory and increased cost of ownership.
  3. Suction/Discharge Port Size:
    • 2″ NPT (internal)
    • 2″ BSP Tapered (internal)
    • 2″ ANSI 150# Raised Face Flanges
  4. Capacity: 0 to 567 litres/minute
  5. Air Distribution Valve: No-lube, no-stall design
  6. Solids Handling: Up to 6mm
  7. Heads up to: 8.6 kg/cm² or 86 meters
  8. Displacement/Stroke: 1.59 litres
  9. Maximum Operating Pressure: 125 psi (8.6 bar)
  10. Weight:
    • Aluminum – 31kg
    • Cast Iron – 59kg
    • Stainless Steel – 52kg

Additional information



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