Plug valves also have roughly similar strengths, but water cross section is not round. Water supply pipe net of valve operation is not more long time to wait for the order, once demand, the valve should be able to close the rapidly-changing, intercepting dependable; Daily demand open valve to reach the designated position, detract from section water head loss, so the valve is a kind of 'find one thousand days, fighting for the' stem facilities; Integrity rate of the valve, in relation to the valve type selection, the production of valves, piping default, assembly, valve opening and closing of the valve and Industrial Valves management, of course, the main comprised still the quality of the valve. Because the soft tightly closed gate valve will be the trend of gate valve, and water supply industry is willing to see fit and using a Industrial Valves. Water supply industry using the butterfly valve is most soft tight sealing butterfly valve, in view of the butterfly valve during the installation process of synthetic easy damage influence tightly closed, many manufacturers to launch the metal sealing butterfly valve closely to replace aprons tight sealing butterfly valve. Soft opening and closing tightly closed gate valve, make sure not to close to death, as long as the stop-water effect can be reached, or fall off is not easy to open or rubber lining. Butterfly valve is the main lack of disc occupy certain water section, add some water head loss; Gate valves is no this problem, but the height of the large diameter vertical gate effect turns the soil depth of pipeline, the length of the large diameter horizontal gate increased pipeline occupation horizontal plane or the size of the object surface, affect other pipeline settlement; Ball valve and plug valve is to maintain the gate valve, water resistance is small, tightly closed good, flexible movement, convenient operation and maintenance and other advantages. Q: water supply and drainage soft tightly closed gate valves use a: in recent years, the domestic many valves produced research manufacturing soft tightly closed gate, the gate and the traditional woven type or parallel type double sluice gate valve in as described under the unique place: 1, soft tightly closed gate valve body, valve cover sees fit and use precision casting foundry, a molding, mechanical processing, no longer do not use tightly closed copper ring, save nonferrous metals; 2, soft tightly closed gate valve at the bottom of the pit, do not store up residue, gate opening and closing of the failure rate is low; 3, soft tightly closed lining rubber disc size series, exchange. Metal sealing butterfly valve closely because of the tightly closed a less elastic, common right and use unfair structure, especially with the three-dimensional structure of injustice is more reasonable. In order to reduce the pipeline turns the soil depth, average diameter larger pipe equipped with butterfly valve; Influence on the depth of overlying soil part-grown calf, hankers after equipped with gate valves; Ball valves and plug valves Marine valve casting and processing difficulty is big, the price is more expensive, general suitable for use in small diameter pipeline. Because of this, the check valve selection, experience, performance and management have a lot of problems as the research. butterfly valve, gate valve, ball valve and plug valve and so on, the scope of use is not the same as in the water supply network. As for the diameter size line should be according to the specific things around the ponder question to distinguish clearly. Valves in water supply network, wide spread and utility. In recent years because of foundry technology improvement, think appropriate and use the method of natural resin sand casting, can prevent or detract from the mechanical processing, thus reduced the cost, because this will work on the ball valve is used for large diameter pipeline sex as KaoQiu. 。 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 Industrial Valves 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. 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