The water pump vibrates and sends out large noise, which is caused by pump evacuation, cavitation or mechanical failure.

1. Before starting the pump, the air is not emptied or the air in the pump is not cleaned.

2, the displacement of the pump is too large or too small to cause cavitation or pump.

3, the axle bush is seriously worn and the gap is too large. Health level self-priming pump

4, the connecting part of the inlet of the pump or the sealing packing is sealed, and the air leakage is sealed.

5, the bearings of the impeller and the imported pipeline are not fixed and the filter net is blocked, which leads to the shortage of water supply.

6, the anchor bolts are not fixed, so that the motor vibration can cause the vibration of the pump, or the quality of the construction and design and installation is not qualified.

7. The damage of the impeller or the imbalance of the rotor causes the vibration.

8, the coupling is not concentric, the connecting bolt is loosened or the damping rubber ring is damaged, which causes unbalance and non vibration absorption.

9, the shaft of the pump shaft or the shaft of the pump is not concentric, causing the friction between the rotor and the stator.

10. The balance plate is badly worn and failed, and the axial thrust is too large.

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