Gorman-Rupp G Series Gear Pumps: Lubricant and Viscous Liquids Pumping
Gorman-Rupp G Series Gear Pumps: Lubricant and Viscous Liquids Pumping
The Gorman-Rupp G Series range of self priming positive displacement rotary gear pumps is designed to provide superior performance in the transfer of process fluids, unmatched in the industry. Available in Medium-Duty , Heavy-Duty and Extreme-Duty (abrasive service) models, pump materials include cast iron, cast steel and stainless steel.
G Series self priming pumps are manufactured with unique features that enable them to perform better and last longer on countless applications, providing quality and reliability that make the G Series the premier pump in the industry.
Further advantages include:
- An automatic idler pin lubrication system uses the pumped fluid to continuously cool and lubricate the idler pin and bush to reduce wear in this area.
- An internal seal cavity venting system provides a continuous flow of liquid through the seal area, ensuring cooling and reducing pressure. This reduces seal face
- Load, increasing seal life.
- A deep “end-feed” area offers superior priming performance under low inlet pressure conditions and/or high viscosity liquids.
- Easy to service
- Viscosities to 440,000 cSt
- Pressures to 20.7 bar (300 psi)
- Flows to 2200 litres per minute
- Handle a variety of liquids , including highly viscous, high temperature and abrasive fluids
- Widest range of sealing options in the industry
- High strength material eliminates the need for special steel fittings traditionally needed for viscous applications.
- Widest range of housing ports
- Widest range of bushing materials
Download Data Sheets
| Pump Construction | Medium Duty | Heavy Duty | Extreme Duty |
|---|---|---|---|
| Medium Duty (GMS) | Heavy Duty Cast Steel (GHS) | Heavy Duty Standard (GHS) | |
| Heavy Duty Standard (GHS) | |||
| Heavy Duty Stainless (GHS) |
Explore Features and Benefits
What makes the G Series pumps so versatile?
Deep End Feed Area
Deep end feed area decreases the Net Inlet Pressure Required by the pump, which in turn, allows pumps to run at faster speeds. Smaller pumps with direct drive motors can therefore be used where “traditional” rotary pumps would need to be bigger with gearboxes. This feature also offers superior priming performance.
Automatic Idler Pin Lubrication System
Gorman-Rupp’s unique internal pressure lubricated idler pin reduces wear by continuously cooling and lubricating the idler pin and bushing.
Internal Seal Vent
Gorman-Rupp’s seal cavity venting system provides a continuous flow of liquid through the cavity, ensuring cooling. This system also ensures that the seal cavity is under lower pressure than “conventional” pumps, reducing seal face load and increasing seal life.
Back Pull-Out Design
The back pull-out design allows service and maintenance without disconnecting pump housing from piping. Servicing is therefore faster and more cost effective.
Adjustable No-Leak Pressure Relief Valve
Gorman-Rupp’s O-Ring seal design on the relief valve allows for adjustment during operation, without leakage. This means a safer and cleaner environment for operators
Flexible Seal Design
Gorman-Rupp heavy-duty G Series pumps allow for the most flexible sealing arrangements in the industry. They are engineered to allow installation of “industry standard” cartridge seals as well as a full array of Gorman-Rupp packing, lip seal and mechanical seal options.
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