Centrifugal pump works Centrifugal pump is the use of impeller rotation and centrifugal motion of water to work. Pump before starting, the pump housing must be filled with water and the water-absorbing tube, and then start the motor , the impeller and the drive shaft so that water as the high-speed rotational movement, the centrifugal movement of water occurs, thrown to the impeller outer edge, the volute casing of the pump flow Road into the pump pressure water pipeline.