Chrishelle Rogers is the global gear pump product manager for Maag Industrial Pumps, Grand Terrace, California, and PSG, Oakbrook Terrace, Illinois. Rogers can be reached at 909-222-1309 or firstname.lastname@example.org. For more information, visit psgdover.com.
- The rotor and idler gears un-mesh at the suction port to create an atmospheric vacuum that draws fluid into the pump. As the rotor turns, the fluid is forced between the rotor teeth and idler teeth.
- Continual rotation of the rotor forces the fluid through a crescent-shaped area within the wetted path. The crescent-shaped area divides the fluid and acts as a barrier between the inlet and discharge ports.
- As the rotor continues rotation, the fluid is forced past the crescent-shaped area and moves toward the discharge port.
- As the rotor completes its rotation, the rotor and idler teeth engage, forcing the fluid through the discharge port of the pump.
This method allows the pumps to operate equally well in either direction, resulting in a positive, non-pulsating flow of the pumped fluid. Other design features include a rotatable pump casing that allows for multiple inlet and outlet port positions and single-point end-clearance adjustment. It also features an enlarged bearing housing at the rear of the pump that allows easy drive-end access to the shaft seal.
Chemical processors must deal daily with fluids that are difficult to transfer. Their task is to create a handling and transfer regimen that includes pumping equipment compatible with many different types of dangerous chemicals while also offering reliable operation and cost-effectiveness with regard to maintenance, repair and downtime.