electric cut-off valve consists of electric actuators or pneumatic actuators and globe valves. It is a closed part of the body. Body rotate around the center line of the valve body, the open and closed. Gate valves are mainly used for cutting, distribution, and change the flow direction of the medium inside the pipeline. Two-piece ball valve and ball valve as a new type of three type of valve has a wide range of applications. The advantages of electric valve 1. Simple structure, easy manufacture and maintenance. 2. Working stroke is small, start-stop time is short. 3. Good sealing, sealing surface friction small, long service life. 4. Globe valve body structure for straight-through, once-through, right Angle type. 5. In the process of opening and closing, sealing surface friction is less than gate valves, wearability. 6. Usually only one seal face, good manufacturing process and easy to maintain. 7. Electric actuators are easy to operate. The working principle of electric valve electric cut-off valve due to friction between the sealing surface of small, long service life, small opening, easy manufacturing, convenient maintenance and get the welcome of people. Suitable for low voltage, high pressure situations. Electric valve closed principle is through the electric thrust rotate the valve stem, make the sealing face of the valve plate and valve seat sealing surface together, to prevent the medium flow. When installing electric cut-off valve is directional, allow only one-way medium flow. The structure of the cut-off valve length is longer than gate valves. At the same time, the cut-off valve fluid resistance, lower reliability of long running seal.

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