Sandpiper Air-Powered Double-Diaphragm Pump. Model: SA3-A. Aluminum construction. Capacity: 260 gpm @ 125 psi. Displacement per stroke: 1.62 gal. Maximum diameter solids handling: up to 3 in. SA series pumps are designed for slurries and liquids with suspended solids. The equipped flap valves allow passage of entrained line-size solids without damage. Inlets: (1) 3/4 in. dia. NPT (female, air), (1) 3/4 in. dia. NPT (female, air exhaust), (1) 3 in. dia. port with a 7-1/2 in. dia. flange and (4) 3/4 in. dia. attachment holes at a distance of 4-1/2 in. Outlets: (1) 3 in. dia. port with a 7-1/2 in. dia. flange and (4) 3/4 in. dia. attachment holes at a distance of 4-1/2 in. Overall dimensions: 37 in. L x 16-1/2 in. W x 29-1/2 in. H. (ACN31a).