Multistage Centrifugal pumps

Multistage Centrifugal pumps

A multi-stage centrifugal pump is a collection of two or more centrifugal pumps that have the same functions. In the fluid channel structure, the performance in the first level of medium pressure mouth and second-level imports are interlinked, the second level of medium pressure and the third level of imports are interlinked, so formed a multistage centrifugal pump series of institutions. The significance of multi-stage centrifugal pump is to improve the setting pressure.

The structure of a multi-stage centrifugal pump

The multi-stage centrifugal pump is mounted on the same pump shaft with several impeller, and the outer part of the impeller is the liquid diversion device and the pump shell. According to the assembly method, there are two kinds: the horizontal split-type multi-stage centrifugal pump, which divides the pump body and the guide device along the axis of the pump shaft, making it into the upper and lower parts. The sectional multi-stage centrifugal pump cuts the pump body and the liquid diversion device along the pump shaft between the impeller to cut into several segments perpendicular to the pump shaft.

Characteristics of multistage centrifugal pump

  • It covers an area of small area. The center of gravity of the pump coincides with the center of the pump foot, so it runs smoothly, it has small vibration and long life.
  • The multi-stage centrifugal pump has the same caliber and the same level centerline does not need to change the pipeline structure, it can be directly installed in any part of the pipeline, so the installation is very convenient.
  • The electric motor and the rainproof cover can be directly used outdoors, without the need to build the pump room, which greatly saves the infrastructure investment.
  • The multistage centrifugal pump lift can meet the different requirements by changing the pump series (the number of impellers), so the application range is wide.
  • The shaft seal is mechanical seal with hard alloy, the seal is reliable, no leakage and the mechanical loss is small.
  • High efficiency and energy saving, beautiful appearance.
  • The casting of the inner part of the above 50 calibers is formed.
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