Features: 1, using three-dimensional eccentric structure, the valve seal with elastic metal ring, so that the disc valve sealing surface with a uniform and reliable contact can be achieved by gas seal leak; 2, unique structure, flexible operation, saving, easy to use long life; 3, high temperature resistance, corrosion resistance, wear three-dimensional eccentric. Valve Co., Ltd. Shandong Everbright produce such a wide range of application types of valves, reliable, no internal leakage, insulation valve flange leakage phenomenon, frequent switching is not stuck, rust, the majority of chemical plants, thermal power plants, steel plants, printing and dyeing, food plants the best choice. BD343H flange butterfly hard seal insulation Features: 1, using the three-dimensional structure of Weifang eccentric valves, valve seats and disc almost no friction, with more and more tightly sealed off function and vice wear compensating seals. 2, ring for soft and hard stacked metal sheets, with the dual advantages of metal seals and elastomeric seals. 3, the sealing surface of the heap Shandong Stellite alloy valves, seals wear resistance and long service life. 4, the use of different materials, both at low and high temperature, high pressure situation butterfly, both with excellent sealing performance, and can be made into a two-way sealed. 5, can provide a variety of gear according to user requirements. 6, electric butterfly valve can be manually or remote centralized control of the scene, and can meet the needs of computer programmed art. Insulation Butterfly | Butterfly | Everbright Everbright Valve Co., Ltd. Shandong is provided by the valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!