The CBK 2-stage gear pump consists of a big displacement, low pressure pump and a small displacement, high pressure pump, a check valve as well as an unloading valve. While working at the pressure lower than the unloading pressure, both big and small pumps output flow...

Combination of a Big Displacement, Low Pressure Pump and a Small Displacement, High Pressure Pump.The Axial Clearance Can be Automatically Compensated by the Bearing Blocks.Aluminum unloading valve body.An Unloading Valve Can effectively reduce the power consumption.

Combination of Two High Pressure Pump.The Axial Clearance Can be Automatically Compensated by the Bearing Blocks.Low Noise, High Volumetric and Mechanical Efficiency.

The CBN gear pump consists of a big displacement, low pressure pump and a small displacement, high pressure pump, a check valve as well as a relief valve.When working at the pressure lower than the relief pressure, both big and small pump supply volume...