Main structure of horizontal multistage centrifugal pump

Type D pumps are installed horizontally. Except for the suction port of the D16-60 pump, which is vertically upward, the suction ports of the other pumps are horizontal. The outlet direction of all D-type pumps is vertically upward. Axial forces are balanced by a balance plate. Shaft seals generally use packing seals, and mechanical seals can also be used according to user needs. Except for D85-67 and D155-67 pumps which use sliding bearings and thin oil lubrication, the others use rolling bearings and grease lubrication.