The pneumatic control valve can be roughly divided into different valves: pneumatic ball valve, pneumatic butterfly valve, pneumatic gates valve, pneumatic intercept valve, and so on. The first two are switching methods of angle strokes, and the latter two are direct switching methods.
The pneumatic devices of common angle strokes can be divided into two categories: shift -type pneumatic actuators and pneumatic pneumatic actuators. Both use air pressure to promote the operation of the valve, but the pneumatic device of the fork -type type should be better than the shoil -type pneumatic device.
The pneumatic device of the fork type is small, the internal friction is small, and the consumption is lower. At the same time, the service life is much longer than that of the shift, which can reach more than 1 million times.
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