Ampco Sanitary Centrifugal Pump. Model: 4 X 3 DC2. Flow rate for new pump is approximately 500 gpm with required horsepower and pressure. Discuss with salesperson your process and product to determine if this pump should handle your specific duty. Impeller dia: 5-1/8 in. Baldor Industrial Motor: 10 hp, 3450 rpm, 230/460 V, 24/12 amps, 60 Hz, 3 phase. Inlet : (1) 4 in. dia. S-line fitting. Outlet: (1) 3 in. S-line fitting. Overall dimensions: 2 ft. L x 1 ft. 1-1/2 in. W x 1 ft. 5 in. H.