APV Crepaco R-Series Positive Displacement Pump. Model: R4R. S/N: B-6212. Capacity: 55 gpm. Displacement per Revolution: 0.175 gal. Final rpm: 367 rev/min. Maximum speed: 900 rpm. Toshiba Electric Motor, 5 hp, 1,715 rpm, 230/460 V, 13.0/6.5 amps, 60 Hz. The "R" Series pumps incorporate stainless steel bodies with versatile, resilient, molded rotors and a heavy cast iron gear case. Inlets: (1) 2 ½ in. dia. Acme threaded fitting. Outlet: (1) 2 ½ in. dia. Acme threaded fitting. Overall dimensions: 3 ft. 5 in. L x 1 ft. 10 ½ in. W x 2 ft. 5 in. H.