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    • The basic structure of the centrifugal pump is mainly composed of the following six parts:Impeller: As the core part of the centrifugal pump, its high speed and large output. The blades on the impeller play the main role and need to pass the static balance test before assembly. In addition, the inner and outer surfaces on the impeller are required to be smooth to reduce the friction loss of water flow.
      Pump body (pump shell) : as the main body of the pump, it plays a supporting and fixing role, and is connected with the bracket where the bearing is installed.
      Pump shaft: Its role is to connect the coupling and the motor, the motor torque to the impeller, is the main part of the transfer of mechanical energy.
      Bearings: Usually adopt plain bearings, using transparent oil as lubricant. During operation, the temperature of the bearing should be kept within a certain range.
      Seal ring (leak reducing ring) : used to reduce liquid leakage.
      Packing box: mainly composed of packing, water seal ring, packing cylinder, packing gland, water seal tube. Its function is to close the gap between the pump housing and the pump shaft, to prevent the water flow in the pump to the outside, while preventing the outside air into the pump.