BD343H hard sealing flange insulation jacket, also known as butterfly valve, is based on the common three eccentric metal seal butterfly valve on the external welding a metal jacket, butterfly valve body on both sides of the insulation jacketed interface Shandong valve can culvert into superheated steam or other gases, in order to prevent the media solidified or crystallized state at room temperature. Butterfly valve flange insulation than ordinary metal seal butterfly want freshman to two specifications, mainly used in petroleum, chemical, metallurgy, pharmaceutical and other types of systems. The valve structure with three eccentric butterfly BD343H insulation, seat and disc plate sealing surfaces are made of different hardness and stainless steel valve type, with good corrosion resistance, long life, this valve has a two-way sealing function, the products meet the national GB / T13927-92 valve pressure test standards. Valve Co., Ltd. Shandong China Everbright production of such types of valves wide range of applications, reliable quality, no internal leakage, leakage phenomenon, frequent switching is not stuck, rust, the majority of chemical plants, thermal power plants, steel mills, printing and dyeing, the best choice of food plants. Flanged butterfly hard seal insulation, butterfly valve manufacturer Everbright Everbright provided by Valve Co., Ltd., Shandong. 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!