Analysis of pump running vibration causes
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1, because the pump manufacturing process, but off: the rotor imbalance; pump and motor shaft is not the heart; rotor and stator part of the collision or friction.
  
2, due to the use of longer, pump wear and tear aging: impeller loose; bearing damage or bearing clearance.
  
3, the pump inlet pipe, impeller, the pump debris; fixed with the pump and the foundation is not fixed, the phenomenon of resonance to strengthen and so on.
  
4, water pump work to promote water flow, accompanied by eddy currents, cavitation will inevitably produce vibration.
  
From this we can conclude that there are many reasons why a pump generates vibrations, some of which are inevitable for several generations of vibrations. This requires that we deal with the issue of pump vibration in addition to the pump itself to enhance the manufacturing process to reduce the vibration amplitude, the pump through the installation of rubber vibration isolators, spring isolators, inertia base pump vibration has become an important method.