Waukesha Positive Displacement Pump. Model: 10. S/N: DO59316SS. Displacement per revolution: 0.013 gallons. Max Speed: 600 RPM. Max Pressure: 150 PSI. Nominal Capacity: 10 GPM. Nominal temp range: -40F to 300F. Pump body: 316SS. Waukesha 88 Alloy 3-3/8 in. rotors. Reliance Electric Co. motor: 1/2 Hp, 1725 Rpm, 208-230/460 V, 2.2-2.2/1.1 A, 60 Hz, 3 Phase. Morse drive: Serial no. 74NP0401. 1750 Rpm, 6.20 Ratio. Estimated flow rate at 278 RPM: 3.6 GPM. Inlet/outlet: (2) 2 in. ACME ports. Overall dimensions: 3 ft. 2-3/4 in. L x 11 in. W x 1 ft. H.