The inlet butterfly valve switch of the water ring vacuum pump is out of order

Water ring vacuum pump inlet butterfly valve switch failure is a more complex fault, usually in the occurrence of a sharp decline in the vacuum, you can consider the inlet butterfly valve switch failure, first to understand the causes of a water ring vacuum pump switch failure:
When one water ring vacuum pump is switched to another standby water ring vacuum pump, the vacuum will drop sharply and cannot be recovered. This situation is likely to be water ring vacuum pump inlet butterfly valve closed, and simply can not move, resulting in two water ring vacuum pump gas, vacuum decreased. The reason for the failure is that the electrical control switch of the butterfly valve is not sensitive enough to close the butterfly valve
Butterfly valve is prone to another kind of failure is the butterfly valve can not open, this situation is generally because the water ring vacuum pump butterfly valve can only be opened when the pressure difference between front and rear up to 30mbar, so only in the low vacuum can operate, but in the high vacuum can not operate. When this failure occurs, reduce the valve pressure can be used normally
Butterfly valve corrosion is also a cause of switch failure
When the water ring vacuum pump butterfly valve switch failure phenomenon, after finding the fault, to repair in a timely manner, to avoid the impact of subsequent use

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