Sandpiper S20B1ANNABS600 – 2″ Air-Operated Double Diaphragm (AODD) Pump Aluminum + Neoprene
Looking for a 2-inch air-operated diaphragm pump with aluminum body and Neoprene diaphragms? The Sandpiper S20B1ANNABS600 belongs to the S20 Metallic Standard Duty series by Sandpiper (Warren Rupp – USA). It is an Air-Operated Double Diaphragm (AODD) pump with 2″ inlet/outlet ports, aluminum wetted parts, Neoprene diaphragms and balls/seats, and a maximum flow rate of approximately 758 L/min (200 GPM).
Fully air-powered, it is intrinsically safe for explosive environments and suitable for viscous fluids, suspended solids and demanding industrial applications.
Key Features of Sandpiper S20B1ANNABS600
✅ Air-Operated Double Diaphragm (AODD) pump.
✅ Inlet / Outlet: 2″ (BSPT / NPT depending on version).
✅ Body material: Aluminum.
✅ Diaphragm material: Neoprene.
✅ Balls and seats: Neoprene.
✅ Max flow rate: approx. 758 L/min (200 GPM).
✅ Solids handling: up to 6 mm.
✅ Max air pressure: 8.6 bar (125 psi).
✅ Top discharge design, easy maintenance.

Technical Specifications
✅ Model: S20B1ANNABS600
✅ Series: S20 Metallic Standard Duty
✅ Type: Air-Operated Double Diaphragm (AODD)
✅ Port size: 2″
✅ Wetted material: Aluminum
✅ Diaphragm: Neoprene
✅ Balls / Seats: Neoprene
✅ Max flow: ~758 L/min (200 GPM)
✅ Max air inlet pressure: 8.6 bar (125 psi)
✅ Max solids size: 6 mm (0.25″)
✅ Air inlet: approx. 3/4″
✅ Origin: Warren Rupp – USA
Typical Applications
✅ Wastewater, sludge and waste transfer
✅ Glue, paint and kaolin pumping
✅ Non-corrosive solvents compatible with aluminum and Neoprene
✅ Food, light chemical and water treatment industries
✅ Portable and explosion-proof applications (air-powered)
Why Choose the Sandpiper S20B1ANNABS600?
The Sandpiper S20B1ANNABS600 is a popular high-flow AODD pump with simple construction, easy maintenance and safe operation in potentially explosive environments. The aluminum body with Neoprene elastomers suits many common industrial fluids.
Selection & Installation Tips
✅ Confirm aluminum body and Neoprene diaphragms are compatible with your fluid.
✅ Supply clean compressed air at pressure ≤ 8.6 bar.
✅ Check suction/discharge orientation and tighten connections properly.
✅ Not suitable for strong chemicals that attack aluminum or Neoprene.
Hotline: 0084 787900099