BD343H flanged valve multi-level hard sealed insulation thanks to the steam jacket insulation / cold (we can use hot water, oil or other liquids, gases, thermal / cold) Flanged butterfly hard seal insulation manufacturers, so even if the outside temperature below freezing Shandong valve, the valve is still operational flexibility to ensure that the media can be closed pipelines can start. The advantage is that other control valves are not available, a heavy oil pipeline ideal control valve. [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 valves, butterfly valves, valve type Everbright Everbright Limited provided by Shandong 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!