SANDPIPER S1F 1" Metallic AODD Ball Valve Pump

The SANDPIPER S1F is a 1″ (25 mm) metallic air-operated double-diaphragm (AODD) ball valve pump with all-bolted construction. A best-selling standard-duty platform, the S1F pairs SANDPIPER’s no-lube, no-stall air distribution valve with a robust wetted path for reliable transfer service across general industrial, chemical, sanitary, and finishing applications.

The S1F is offered in aluminum, cast iron, and stainless-steel wetted construction, with 1″ NPT (internal), 1″ BSP (tapered), and 1″ ANSI 150# raised-face flange port options to simplify integration with existing piping. SANDPIPER lists CE, ATEX, ABS, EAC, and ISO declarations for this platform.

All-bolted construction — secure containment and serviceability across the pump’s wetted path
No-lube, no-stall air distribution valve — reliable cycling without external lubrication
Capacity 0– 45 gpm (170 lpm)
Heads up to 125 psi or 289 ft of water (8.6 bar / 88 m)
Max operating pressure 125 psi (8.6 bar)
Displacement 0.11 gal (0.41 L) per stroke
Solids handling up to ¼″ (6 mm)
Aluminum, cast iron, or stainless-steel wetted construction
Port options: 1″ NPT internal, 1″ BSP tapered, or 1″ ANSI 150# raised-face flange