Q: improve Marine valve plug valve structure way the default answer: plug valves have a variety of structure, improve the plug valve according to the tightly closed the material divided into soft hard tightly closed and tightly closed. 1, double double tightly closed tightly closed improve plug valve plug valve is soft tightly closed structure. Transmission while opening the valve make cock rise with structure, help and collapsed on both sides of the board, make the combination plug body and the valve tightly closed after the face to get rid of, to help plug body rotating 90 degrees to the whole paper valve. Close to 90 degrees turn the handle to rotate the cock to the closed position, to turn the gear handwheel to cock loss tightly closed. protection is very convenient, can be in not taking down the body from the line, after removing the end cover at the bottom of the body can make the pump change on both sides of the plate from valve body. Mechanical transmission cross because of the structure can be a petition cylinder, electric devices, such as hydraulic system of long-range stem. Double tightly closed improve plug valve with double ZuGeng and discharge function, the valve is equipped with pressure balance device, in case of abnormal booster system, and can detract from the resistance of the valve opening and closing of the moments. Is often used in the high temperature situation of chemical plant. Cock body into three boards combination cylindrical body and tightly embedded rubber sealing faces on both sides of the board, middle for cylindrical wedgeplug. Mechanical drive to improve cross plug valve, solve the drive input torque is not enough limit, make progress in the direction of large diameter and high pressure valve. On the fuel, natural gas long distance pipeline progress more and more big. Mechanical transmission cross improve the cock channel of plug valve and pipe diameter, fluid resistance small, convenient pigging. B。 Mechanical drive to improve the plug valve, cross office principle is: the transmission device rotation while opening the valve stem of the turnbuckle cock body rise. Because it is compressed tightly closed circle metal surface contact each other, valves have fire prevention function. Metal tightly closed body improve the plug valve is closed, can have dealt with wheels and the surface of the stem to the seat tightly closed to increase pressure, after increasing tightly closed pressure, can make the plug valves have better sealing performance closely. 。 Seat tightly closed surface bulge, easy to tightly closed surface cleaning, tightly closed surface is not easy to store up the formation of crystal medium, or solid particles. But think appropriate and use the handle small drive moment, because the use of nominal Industrial Valves size small in general. Its basic principle for the open when the cock rise, cock rotate 90 degrees to valve process can detract from the whole paper and body tightly closed surface friction; Close the valve when the cock rotate 90 degrees to the closed position after a decline with the valve body tightly closed surface contact tightly closed. opening and closing process of cock and get rid of the seat, so very easy opening and closing of the valve, and tightly closed surface is not easy to scratch, in the process of open or closed valve using the long duration of survival. Because this also is widely used in the fuel, liquefied gas, natural gas, smelting metal mine engineering, light industry, textile, ships dock, food and environmental protection water treatment of seventy-two lines, such as regulation, opening and closing of pipeline fluid. Closed transmission device make cock to rotate 90 degrees to the closed position, after the first cock no longer turn, make cock around after driving rotating turnbuckle, with body tightly closed surface contact tightly closed. 2, hard tightly closed improve plug valve metal hard tightly closed on both sides of the plug valve seat tightly closed surface can be tightly closed, limit the use of the valve is not affected by the media flow. The handwheel handle improve plug valve structure is compact, large and small, fluid resistance is small. 一个。 Improve the plug valve handwheel handle type, office principle is: the rise, make the cock and the valve fully open. Close valve plug body by the transmission due to the structure which rotate 90 degrees to the closed position, then push the plug body loss, after contact with the bottom of the valve body on both sides of the plate down, no longer middle wedgeplug and then decreased, after cant push plate on both sides of the inlet side, the side panel of the soft tightly closed tightly closed surface and the body surface contact after subjected to compression and tightly closed. Cock and body tightly closed surface from driving cock again after rotate 90 degrees to the valve is fully open. Hard tightly closed there are many types of improve the structure of the plug valve, there are two common. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. 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Making a few technical tweaks to the way you structure and distribute wedge valve could be the difference between an engaging, thought-provoking product and a perfunctory one.