Ampco Centrifugal Pump Z-series. Model: ZC2. S/N: R-54574-1-1. Size: 2 ½ x 2. Impeller diameter: 6- 1/8 in. Capacity: 200 gpm @ 125 tdh (54 psi using specific gravity of water = 1). U.S. Electrical Motor, 7 ½ hp, 3465 rpm, 230/460 V, 19.2/9.6 amps, 60 Hz, 3 phase. Ampco's line of heavy-duty pumps are utilized in a wide range of industrial applications due to their high resistance to corrosion from many chemical solutions. Z-series pumps offer rugged, heavy-duty industrial designs with 150-lb. flat faced flanged connections and high efficiencies. Inlet: (1) 2 ½ in. dia. S-line fittings. Outlet: (1) 2 in. S-line fittings. Overall dimensions: 1 ft. 10 in. L x 1 ft. 1 ½ in. W x 1 ft. 2 in. H.