Electric gate valves use installation note: electric gate valve can be installed in horizontal or vertical pipe lines, single and double disc gate valves should be installed in a horizontal pipeline, and the hand wheel shall be located above the Industrial Valves, don't allow the install. Gate valves flow direction of medium is not restricted. Electric gate valves are normally connected by flange, special occasions are also useful welding connection. For large diameter and high pressure Industrial Valves, opening and closing torque is bigger. In order to reduce the open-close torque, can be used to install by-pass valve. Bypass valve installed on the outside of the main gate, it both sides of the import and export and the main gate of the practice link, connected in parallel. Main gate Industrial Valves should be opened before opening by-pass valve, inlet valve, reduce the pressure difference between before and after the main gate valve gate, reducing the main gate of the open torque. Selection of by-pass valve diameter should be considered according to the main valve diameter and use requirement. Electric gate is truncated, sealing performance than globe valves. Gate valves main 'responsibility' is the 'stop', and with the minimum resistance: 'stream'. It should not be used for regulating the flow of medium and pressure, such as used to adjust for a long time, sealing surface easily be medium erosion wear and affect the sealing performance. Electric gate valves of the medium temperature, pressure, the use of reliability should be noticed. In high temperature and high pressure, due to the change in temperature may make the damper is woven death, at the same time due to the medium temperature is not uniform throughout, easy generation is not sealed. But this type gate valve is especially striking.
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