The content of comprehensive maintenance of pneumatic butterfly valve mainly includes the following aspects:

1. Classified by power source Depending on the type of power source, the valve drive can be divided into four types of manual, pneumatic, hydraulic (hydraulic pressure or water pressure) and electric (electromagnetic or motor) drive.

The failure rate of the electric valve product is very low during use. But sometimes there may be such an electric actuator failure, some faults are often not a problem in the device itself.

Electric actuator failure situation: unable to open or fully Test method:

Electric actuator fault scenario 6: The motor temperature is too high Test method: 1. Check the voltage normally with the instrument. 2. Check if the valve body is too tight, if it is too close to consider the replacement valve body.

Electric actuator fault scenario 8: The driver sometimes cannot be opened or closed. Test method: