Waukesha Model 3 Positive Displacement Pump on Stainless Steel Cart. Model: 3. Approximate flow rate for new pump is 4 gpm with required horsepower and pressure. Discuss with salesperson your process and product to determine if this pump should handle your specific duty. Materials of construction include stainless steel. Reliance motor: 1/4 hp, 1725 rpm, 230/460v, 3.8/1.9 amps, 60 Hz, 3 phase. Reliance electric motor drive: ¼ HP, Output: 520 max/ 20 min rpm, gear ratio: 9.3-1. Allen-Bradley controls. Overall dimensions: 3 ft. 2 in. L x 18 in. W x 3 ft. 3 in. H.