Butterfly valves can be divided into handle butterfly valves, worm gear butterfly valves, electric butterfly valves and pneumatic butterfly valves according to the driving mode. The reasons why these four butterfly valves can't be opened are different, and the natural treatment methods will be different. This article will show you how to use the pneumatic butterfly valve.

The reason why the pneumatic butterfly valve can't be opened:

1. Insufficient air pressure.

2. Control command line failed.

3. The transmission mechanism is abnormal.

4. The machine is stuck.

Electric and pneumatic butterfly valves add electric and pneumatic devices. If the butterfly valve can't be opened because of these two driving devices, we need to find a manufacturer or a professional to check and repair it. Users are not advised to solve it by themselves, otherwise improper operation will bring greater losses.