By the electric actuator and valve combination connected through mechanical connection assembly, commissioning and installation of electric control valve form. Power Supply: DC24V, AC220V, AC380V other voltage levels. Industrial automation control system by receiving a signal (such as: 4 ~ 20mA ) to drive the valve spool and valve seat to change the cross-sectional area between the size of the control channel of media flow, temperature, pressure and other parameters. Automated adjustment function. Connection with flange, double that wire from the mouth of socket connection. Petroleum, chemical, power, mining, metallurgy, light industry, transportation, water, ships, boilers and other projects supporting the construction of the ideal product.