Gorman-Rupp Pumps GMS1 1/2NK3-B Positive Displacement Pump

The GMS1 1/2NK3-B Positive Displacement Pump is designed for medium duty applications, capable of handling a flow capacity ranging from 3 to 265 GPM (11 to 930 LPM) and operating at pressures up to 150 PSI (10.3 BAR). It is suitable for a wide viscosity range, accommodating fluids from 28 SSU to 250,000 SSU (1 to 55,000 cSt), and can operate in temperatures from -60¬8F to 450¬8F (-51¬8C to 230¬8C). This pump features high-strength, computer profiled gearing for quiet operation and thrust-controlled pump elements. It offers exceptional seal versatility, with options for carbon graphite or silicon carbide bushings, and various sealing methods including mechanical seals and packing seals. The GMS1 1/2NK3-B is a self-contained unit that does not require external bearings unless used in belt-driven applications, where an extended shaft option is available. Engineers considering this pump should evaluate its specifications against their project requirements, particularly in terms of flow rate, pressure, and fluid viscosity.