BD343H flange butterfly hard seal insulation Features: 1, using three-dimensional eccentric structure, seat and disc almost no friction, with more closed more tight sealing function and wear compensating seals deputy. 2, the seal is soft and hard stacked metal sheets, with the dual advantages of metal seals and elastomeric seals. 3, sealing surface heap Stellite alloy, brand valves, seals wear resistance and long service life. 4, the use of different materials, both at low and high temperature, high pressure situation, both with excellent sealing performance, Shandong cast steel valves, and can be made into two-way sealed type. 5, can provide a variety of transmission according to user requirements. 6, the electric valve can be manual or remote centralized control site, valves, and can meet the needs arts program-controlled computer. BD343H flange butterfly hard seal insulation jacket, also known as butterfly, is based on the common three eccentric metal seal butterfly valve on the external body welding a metal jacket, butterfly valve body on both sides of the insulation jacketed Interface You can culvert into superheated steam or other gases to prevent the media to solidify or crystallize state at room temperature. Insulation valve flange than ordinary metal seal butterfly to freshman two specifications, mainly used in petroleum, chemical, metallurgical, pharmaceutical and other types of systems. [BD343H insulation flange seal butterfly] Introduction BD343H flange seal butterfly [insulation] Medium: acid / base / salt / water / vapor / gas / oil and so on. BD343H insulation flange butterfly valve is widely used in petroleum / chemical / fertilizer / smelting / Electricity / Water / Building / wine / Paper / pharmaceutical industries. Shandong Everbright valve (Figure) | Valve Type | valve provided by Valve Co., Ltd. Shandong China Everbright. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.