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Why the centrifugal pump vibrate

Why Pipeline centrifugal pump vibration much?An pump machinery according to the customer's feedback, summarized as the followings, we hope it can help the masses of customers!

1), check whether the pump is running under the design department: head, flow, such as water temperature, vacuum suction height (there is) the condition of cavitation.

2), check the pump valves are in good condition.
3), check whether the water entrained air or other gas.
4), check whether there is air on pump discharge line.
5), check whether pump inlet air leakage.

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