Chief hydraulic gear pumps are designed to pump highly viscous fluids like oil, paints and resins with the help of two interlocking gears for a positive displacement. These units feature an aluminium housing with a pressure bearing design for minimal internal friction and counter-clockwise (left) rotation of the drive gear to eliminate pulsations, even at a speed of 3600 rpm. They are further integrated with a self-priming capacity for producing a partial vacuum that allows atmospheric pressure to force the liquid into the inlet side. Choose from an extensive range of these bi-directional gear pumps, available in displacement ranges up to 1.22 Cu. in/revolution on Raptor Supplies.