Electric actuators are electromechanical devices used to control fittings for closing and opening the flow of media in pipelines or to regulate the flow by controlled opening and closing. Electric actuators can be controlled remotely from the control room or by electric control unit connected directly on actuator. Depending on the type of dury, actuators are devied into Standard and Rematic categories. According to different types of industrial valves, part-turn, multi-turn and linear actuators are available.