One. First of all, the whole equipment needs to be checked to confirm the source of abnormal sound and determine whether the abnormal sound comes from the vacuum pump unit.

 

Two, if the sound source from the vacuum pump unit is determined, in the operation of the water ring vacuum pump, open the drain valve mouth, if frustrated on the valve mouth, sound disappear, you can determine the different ring for cavitation, recommend that users in the case of without affecting the vacuum degree requirements, release valve mouth be discouraged valve, regulating valve switch to eliminate or reduce the cavitation noise.

 

Three. If the vent valve port is opened and the abnormal sound does not disappear, it is necessary to close the vacuum pump unit, judge whether there is a foreign body in the pump body through each observation port without disassembling the pump body, and check whether the parts in the pump are damaged or worn.

 

Four. If the above steps do not eliminate or reduce the abnormal sound, you can also try to turn the shaft and the impeller to check whether the impeller and the pump body produce friction and friction with the distribution plate.

 

Five. If friction or abnormal sound is still found, it is still recommended not to remove the vacuum pump unit for maintenance under normal circumstances.

 

According to the above steps, first check the cause of the noise in the vacuum pump unit. If the reason for the response is not checked, it is necessary to seek help from the manufacturer in time and carry out the maintenance and inspection back to the factory. Do not check on your own to avoid causing greater losses.