Control valve is compressed gas as power source, to the cylinder as the actuator. And with the help of valve positioner, converter, electromagnetic valve, Paul position valve, a gas storage tank, a gas filter etc. annex to drive the valve, to achieve switching capacity, or proportional adjustment, industrial automation and control to receive the control signal of the system to complete the regulation of media channels: flow, pressure, temperature, liquid level, all kinds of process parameters. Pneumatic control valve is characterized by simple, rapid response, and intrinsically safe, no need to re take explosion-proof measures.
Control valve for regulating media flow, pressure and liquid level. According to the regulating position signal, automatic control valve opening, so as to achieve the medium flow, pressure and liquid level regulation. Regulating valve sub electric control valve, pneumatic control valve and hydraulic control valve, etc..
The two part valve by the electric actuator or pneumatic actuator and control valve. Control valve is usually divided into direct single seat regulating valve and through two seater type regulating valve two, the latter with large flow capacity, imbalance and stable operating characteristics, so it is especially suitable for in large flow, high pressure drop and leakage less occasions.
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