... for water, oil 3. delivery within 7 working days This series of centrifugal pumps as an ideal choice own a lot ... shaft, bearing, sealing ring and stuffing box.1, impeller is the core part of centrifugal pump, it has advantages of high speed ... sides of impeller and producing axial thrust to the entrance of the direction, can cause the rotor shaft, develop blemishes and vibration, so ...