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 BD343H sealed insulation butterfly, butterfly valves on both sides of the body insulation installed There jacket interface, culvert into superheated steam or other gases flange butterfly hard seal insulation 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. BD343H flange insulation multi-level hard sealed butterfly valve has good insulation properties BD343H cold butterfly, while effectively reducing the pipeline medium heat loss. Mainly used for fluid flow and cut off the best device for regulating the food, pharmaceutical, petrochemical, industrial environments and high-rise buildings and pipelines. 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 manufacturers | Butterfly | Everbright Everbright Valve Co., Ltd. Shandong is provided by the valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) is a specialist in the "valve" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Everbright" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the valve Everbright won the trust of customers in the congregation ball, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you!