Medium Duty Rotary Gear Pumps | Gorman Rupp GMC/GMS Series

Medium Duty, Rotary Gear Pumps, Gorman Rupp, G SeriesGorman-Rupp G Series Medium Duty Rotary Gear Pumps

The Flexible, Economical Solution for Many Demanding Applications

The Gorman-Rupp G Series medium duty rotary gear pumps are designed to handle clean liquid applications usually reserved for more expensive, "heavy duty" pumps.

Available In Two Styles

The compact close coupled GMC and the stub shaft, flex coupled GMS - Medium Duty G Series Rotary Gear Pumps offer the quality features found on all G Series pumps, as well as performance and adapability features that are unique to our medium duty line.

The GMC Series medium duty rotary gear pump is designed for applications in the operating ranges noted below. Direct connecting to other pieces of equipment provides an extremely compact system design. The six sizes of Gorman-Rupp close coupled pumps connect to standard NEMA “C” flanges. Rotor shaft bores accept standard motor shafts; 5/8” standard, 7/8”, 1-1/8” and 1-3/8” are optional. Metric coupling also available. At synchronous speeds, extra drive equipment, including couplings or outboard bearings, is not required. For continuous service, or for handling viscous liquids, see the heavy duty GHS section.

The GMS Series is designed for intermittent or medium duty service for applications in the operating ranges noted. These units are available with head and backhead jackets for temperature control, carbon graphite bushings for low viscosity liquids, silicon carbide bushings for wear resistance. For continuous duty service, or for handling viscous liquids, see heavy duty GHC pumps.

  • Max Capacity: 450 gpm (28 lps)

  • Max Pressure: 200 psi (13.8 bar)

  • Max Viscosity: 250,000 ssu (54,000 Cst)

  • Temperature: -40� to 350�F (-40� to 176�C)

  • Materials of Construction: Gray Iron

The Gorman-Rupp G Series™ line of positive displacement Rotary Gear Pumps is designed to provide performance no other gear pumps can match.

Available in Medium Duty, Heavy Duty and Extreme Duty models - in cast iron, cast steel and stainless steel. G Series Rotary Gear Pumps are versatile enough to handle virtually any pumping application and liquid type.

Rotary Gear Pumps come in a variety of drive arrangements, including close-coupled, flex-coupled, gear reducer andv-belt drive.

G Series Rotary Gear Pumps are manufactured with patented features that enable them to perform better and last longer on countless applications, providing quality and reliablility that makes the G Series Rotary Gear Pumps the premier gear pump in the industry.

GMC/GMS Series Medium Duty Rotary Gear Pumps

Gorman Rupp G Series Rotary Gear Pumps


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Established in 1960, York Fluid Controls Limited is a leading stocking distributor of fluid transfer and process pumps, positive displacement and centrifugal pumps, liquid filtration, valves, mixers and tanks. York offers an extensive range of services, including a complete repair and test centre, an engineering department, custom fabrication, and a machine and assembly shop. York serves organizations of all sizes and from all industries, throughout Canada. Reliability, service excellence, a desire to solve customers' problems and the highest ethical standards underpin this family-owned company and all that it does. Learn More


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