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It can be divided into two parts, the upper part is the electric actuator and the lower part is the valve. The Electric valve is a high – end product in the automatic control valve. It can not only realize the switch function, the adjustable electric valve can also realize the valve position adjustment function. The electric valve fitted with an electric angle travel actuator: The electric actuator rotates the valve plate angle to control and regulate the on and off of the valve and the pipeline flow. The output shaft rotation of the electric actuator is less than a circle, that is, less than 360 degrees, which is usually 90 degrees to realize the valve opening and closing process.

This kind of electric valve is mainly butterfly valve, ball valve, plug valve and so on. The electric valve fitted with the multi-turn electric actuator (rotation angle >360 degrees): Generally, the output shaft of the multi-turn electric actuator rotates more than one circle, that is, more than 360 degrees. This kind of electric valve is mainly gate valve, globe valve and so on If we want to realize the valve opening and closing process, we need several such circles.

The electric valve fitted with the straight stroke electric actuator (linear motion): The movement of the output shaft of the electric actuator is linear, not rotating, and the opening and closing control are realized by lifting valve disc. This kind of electric valve is mainly regulating valve, single seat regulating valve, double seat regulating valve and so on.

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