Resilient metal seal butterfly valve

Resilient metal tamper evident seals butterfly valve structure that is simple, compact, lightweight, easy to install and remove, easy maintenance. The butterfly valve stainless steel "U" shaped ring with a certain flexibility in terms of high temperatures, low temperatures, which are excellent and disc sealing. The three-dimensional butterfly eccentricity, rigorous calculation, "U"-ring and disc almost no friction, long life, and has more functionality and more tightly shut. Disc sealing surface using cobalt-based alloy welding, sealing surface wear resistance and long service life. Unique structure of the butterfly, "switch" just turn the valve stem 90 ° to complete. Flexible operation, convenient, energy, affected by the level of media pressure, reliable sealing performance. High temperature resistance, low temperature resistance, corrosion resistance. Elastic hard sealing butterfly valve uses a "U" shaped stainless steel ring, the precision elastomeric tamper evident seal in contact with the polished disc three eccentric. Solve the traditional butterfly valve in the headstock 0 ° ~ 10 ° instantly sealing surface in sliding contact friction still shortcomings in the opening moments to realize the disc sealing surface that is separated from close contact with that sealing effect, to extend the life of the pull tight seals performance good purpose. Which is widely applied to the pipe medium temperature ≤ 550 ℃ metallurgy, electric power, petroleum, chemical, air, gas, drainage and other combustible gases and corrosive media, and the best means to regulate the flow of fluid truncated.