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.... 【Detailed】
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