BD343H insulation butterfly hard seal flange stem through-rod structure, Weifang steel valve, after quenching, with good mechanical properties and corrosion resistance, abrasion resistance. When the valve opening and closing the valve stem rotates not only for the lifting operation, the valve stem packing is not easy to destroy, reliable sealing. And disc taper pin fixed, extended end to prevent out design, in order to avoid the stem and disc connected to the valve stem when the collapse of the accident at the break. 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, high temperature and pressure valve to prevent the media solidified or crystallized state at room temperature. Insulation valve flange than ordinary metal seal butterfly to freshman two specifications, valves, mainly for the petroleum, chemical, metallurgical, pharmaceutical and other types of systems. BD343H flanged valve multi-level hard sealed insulation thanks to the steam jacket insulation / cold (also with hot water, oil or other liquids, gases, heat / cold), so even if the outside temperature drops below freezing, the valve remains flexible operation, to ensure that the media can be closed pipelines can start. The advantage is that other control valves are not available, is ideal for heavy oil pipeline control valves. Temperature and pressure valves _ Everbright BD343H butterfly (certified) _ Valve Co., Ltd. by Shandong Everbright valve. Temperature and pressure valves _ Everbright BD343H butterfly (certified) _ Valve Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, For the latest information, Contact: Manager Ma.