Two butterfly pneumatic valve sealing form

butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral. Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature. If required control pneumatic valve used as flow control, mainly is the right choice of pneumatic valve size and type. Adjusting the structure principle of pneumatic valve is especially suitable for production of large diameter pneumatic valves. Butterfly pneumatic valve not only in the oil, gas, chemical industry, water treatment and other general industrial used widely, but also applied to the cooling water system of thermal power plants.
the commonly used control pneumatic valve has the wafer butterfly valve and flanged butterfly pneumatic valve two kinds. Wafer butterfly valve pneumatic valve pneumatic valve is in the stud connection in place between two pipe flanges, plunger pneumatic valve flange butterfly valve is a pneumatic valve with flange, bolts on the pneumatic valve flange connection on the pipe flange on both ends.