What is the cause of the water pump vibration noise

What is the cause of the water pump vibration noise? Here said the pump noise is refers to the pump body, vibration noise is made by machine, sometimes is not the scope of this paper, Shanghai weihu pump industry in the repair process of pump water pump vibration noise big reason is mainly the following aspects, the author briefly make a statistics, hope there is a reference in pump maintenance for you.

The reasons of the water pump vibration noise

Reason 1, water pump or suction tube is not completely filled with liquid.

Reason 2, suction head is too high, more than the water pump power

Reason 3, suction pressure is too close to the liquid pressure gasification

Reason 5, bottom valve is too large

Reason 6, bottom valve parts stuck due to vibration

Reason 7, suction side not fully immersed in a liquid

8, operation flow rate is far lower than the minimum flow

Reasons for 9, impeller by external factors or impeller damage of ring

Because 10, the motor shaft and pump shaft improper adjustment

Reasons for 11, the foundation is not solid

Reasons for 12, core shaft bending

Why 13, bearing wear or improper adjustment, cause eccentric shaft regulated

14,  rotor unbalance vibration

Reasons for 15 internal mechanical or hydraulic equipment, water pump failure, caused by excessive axial thrust

Reason of 16, inadequate or excessive fat cause inadequate bearing cooling, the temperature is too high

17, improper installation of the bearing

18, the sludge into the bearing

Reason for 19, water running into the bearing caused by excessive cooling moisture freezing on the bearing seat

Above summarizes the dozens of the causes of the water pump vibration noise, specific reasons will not, of course, on a pump at the same time appear so many reasons, the specific reason or want one to one correspondence, there are some problems such as bearing wear occurred is, in the pump body and disintegration to analyse the need for water pump.