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Electric control valve is a kind of high-precision automatic control valve driven by electric actuator, which is widely used in petroleum, chemical industry, electric power, metallurgy, pharmacy and environmental protection and many other industrial working conditions. The valve is suitable for water, steam, gas, oil and a variety of corrosive media, with excellent corrosion resistance and sealing performance. Electric control valve through the electric actuator to achieve precise adjustment of the spool, can respond sensitively to the control signal, accurate control of flow, pressure and temperature, to meet the needs of complex automation control system. Advantages of the product include compact structure, high regulation accuracy, fast response speed, stable operation, easy maintenance, support for a variety of intelligent control protocols, easy to integrate with DCS and PLC systems. Electric control valve not only improves the automation level and efficiency of industrial production, but also ensures the safety and reliability of the system operation, which is the core equipment in modern industrial process control.