Self-priming Pump CBH-80 Oil Transfer Pump

Self-priming pump CBH-80 and its units (hereinafter referred to as pumps or units) are designed to pump liquids without mechanical impurities. Pump CBH-80 is designed to pump the following liquids: water, gasoline, kerosene, diesel fuel and other liquids with a viscosity of not more than 2×10-6m2/s at a temperature from -40?? to +50?? and a density of not more than 1000 kg/m3. Device & operation The pumps are available in right (Fig. 2) and left (Fig. 3) rotation. The direction of rotation is determined by the position of the pump output shaft. Before switching on, the pump is filled with working fluid. At the time of starting, the liquid available in the pump, is captured by the blades of the Wheel 2 and is thrown along the working channel into Pressure section 3. At the same time, part of the liquid enters the blind channel and is forced out into the interscapular space of the Wheel 2, thanks to the jumper in the working channel. An increase in the volume of fluid in the periphery of the interscapular space leads to the displacement of air at the wheel hub into the outlet. This process continues until all air has been evacuated from the suction pipe, and the pumped liquid will not fill the vacated volume. Kinetic energy rotating Wheel 2 is transferred to the pumped liquid and it enters pressure pipeline. The vacated space is refilled pumped liquid. This process occurs continuously during pump operation. Gradually closing the pressure valve, set the operating mode of the pump.