... 1.6MliaStructure DescriptionAfter the pump is open, open the pump cover and impeller without removing suction and discharge piping. Suspension that ... rotor parts, repair. 3 pump housing (ie, pump and pump cover) constitute the studio pump, impeller, shaft and bearing as the ... before and after are equipped with sealing ring and the rear cover plate of the impeller with balance holes, because some do ...