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Simply put, an electric valve is a valve controlled by an electric actuator to open and close the valve. It can be divided into two parts, the upper part is the electric actuator and the lower part is the valve. The action force distance is larger than that of electric valves, and the opening and closing speed of electric gate valves can be adjusted. The structure is simple and easy to maintain. During the action process, due to the buffering characteristics of the gas itself, it is not easy to be damaged due to jamming, but there must be a gas source, and its control system is also more complex than that of electric valves. Electric gate valves have sensitive response, safety and reliability. Many factories with high control requirements have set up compressed air stations specifially for pneumatic instrument control components. Electric devices require electricity and can control their flow rate.