​A multi-stage pump consists primarily of a stator, rotor, bearings, and shaft seal. The rotor consists of the shaft, impellers, balancing disk, and bearing sleeves.

During the installation of the multi-stage booster pump, attention should be paid to selecting a suitable installation location and foundation, correctly connecting pipelines and electrical equipment, and starting and commissioning, as well as regular maintenance and maintenance.

The difference in balancing devices between multi-stage pumps and single-stage pumps is mainly reflected in the generation and balancing methods of axial force.