Gorman Rupp Rotary Gear Pumps

Gorman-Rupp rotary gear pumps are available in medium-duty, heavy-duty, and extremely heavy-duty designs and engineered to provide reliable performance in demanding industrial applications. The pumps are made of stainless steel, cast iron, or cast steel materials, enabling them to handle virtually any type of liquid. With patented parts and the shape of the gears, these pumps can withstand high temperatures and high system pressures without failing.

Gorman Rupp gear pumps feature a casing that houses dual gear (an outer rotor and an internal idler) and crescent assembly. As the rotor turns, the idler gear also starts to rotate, and their teeth mesh against each other. A chamber is created between the teeth and the housing. This space will be filled with fluid and later displaced from between the teeth at the point where the teeth mesh.