Tuthill Atlantic Fluidics Liquid Ring Vacuum Pump. Model: A75. S/N: 25062. Impeller diameter: 9 in. Performance Ratings: 75 ACFM at 20 inches Mercury (Hg), 50 ACFM at 28 inches Hg. This pump features the following FLUID-VAC AXIAL FLOW ADVANTAGES: Flat power curve over entire vacuum range prevents motor overload, Reduced stress on motor shaft and bearings, Increased water handling capability prevents heat build-up, extends life of mechanical seals, Compact, close-coupled design eliminates need for interstage manifold or motor alignment. Baldor Industrial Motor, 5 hp, 1725 rpm, 230/460 V, 13.2/6.8 amps, 60 Hz, 3 phase. Inlets: (1) 2 in. dia. flanged port. Outlets: (1) 2-1/2 in. dia. FNPT fittings. Weight: 180 lbs. Overall dimensions: 1 ft. 8 in. L x 1 ft. W x 1 ft. 1 in. H. (ACN47).