Profile: Hebei Hengsheng Pumps Co., Ltd offers gear pumps. We are an ISO 9001:2000 certified company. Our KCB series gear pump is applied to deliver non-corrosive lubricating oil or equivalent liquid without solid particles and fibers at temperature below 80°C and with the viscosity of 5x10-6-1.5x10-3m2/S(5-1500cSt). KCB series gear pumps are mainly composed of gears, axles pump body, pumps, cap safety valve and axle-end seals. The heat treated gears have the advantage of higher hardness & intensity and rotate with the axles inside the replaceable bearing sleeves. The pump is properly designed with leakage and return chute, which lets the gears bear the least torque force and reduces load & wear on bearings bear. It is also designed with safety valve for protection against overload. The full return flow pressure of the safety valve is 1.5 times higher than the rated exhaust pressure of the pump. It can be also adjusted within the allowance of exhaust pressure range according to circumstances.