Centrifugal pump NDS

for wastewateroilelectric

The pump shell is separated horizontally on the axis line, the upper part is the pump cover, the lower part is the pump body, the suction inlet and outlet are on the pump body below the pump axis, the impeller is symmetrically arranged, and the axial thrust is automatically balanced without complex balancing mechanism. The seal of the pump adopts mechanical seal. The centerline supports a separate pump foot structure, the bearing body adopts an air-cooled structure, and there is a fan on the outside of the bearings at both ends, which is convenient for heat dissipation. The basic configuration of the shaft seal is a mechanical seal, and the pump body adopts a centerline support structure. The standard configuration of the bearing part is the air-cooled oil lubricated bearing part, the driving end adopts the sliding bearing to bear the radial force, and the non-driving end is equipped with two angular contact bearings and a sliding bearing. The impeller is set to balance the axial thrust with the same number of impellers arranged on both sides. The axial split structure of the pump is convenient for maintenance, it only needs to open the pump cover, and the split-half structure of the sealing ring makes the maintenance more convenient, the sealing ring can be replaced without removing the impeller, and there is no need to disassemble the inlet and outlet pipeline. FEATURES AND ADVANTAGES Improve the cavitation résistance of the pump. The pressurized water chamber adopts double volute structure, and the radial force is completely balanced in theory. The drive end is designed with a tapered shaft, and the coupling is easy to disassemble.