... impeller, pump body, pump shaft, bearing, sealing ring and stuffing box.1, impeller is the core part ... deal with immediately.5, sealing ring also called minus leaking ring. The big gaps between the impeller ... of impeller and pump shell, there is a sealing ring around the inner pump shell and outer impeller ... box mainly composed by packing, the water seal ring, stuffing tube, packing gland and water pipe. ...