Pneumatic wedge gate valve sealing principle, use and structural characteristics of 2)

pneumatic wedge gate valve sealing principle of
pneumatic sealing wedge gate valve wedge disc sealing surface and seal depends on the two together, the sealing surface wedge time on both the principle of pneumatic valve. Wedge auxiliary load the use of the purpose is to improve the seal, so that the metal sealing pneumatic wedge gate valve for high pressure, low medium voltage has been sealed. Pneumatic valve stem clockwise rotation of pneumatic valve is closed, the pneumatic valve sealing surface with pneumatic seal and seal face seal of the valve. However, metal sealing pneumatic wedge gate valve sealing by the wedge effect than media power, pressure is often not enough to reach the importer import seal. So the metal sealing pneumatic wedge gate valve is a single mandatory seal. Application:
pneumatic wedge gate valve pneumatic wedge gate valve is widely used in road media connected or disconnected equipment lines of the opening and closing ceremonies of the petrochemical industry, power plants and other petroleum products, steam pipe.
in all kinds of pneumatic valve, pneumatic valve is one of the most widely used. It generally applies only to full open or full close, can't adjust and throttling.
wedge gate pneumatic valve is commonly used in the shape of the pneumatic valve size is not strictly required, as well as the use of a tough conditions and situations. High temperature and the pressure of the working medium, such as requiring closed, to ensure long-term cases such as the sealing parts.
usually, conditions or sealed performance is reliable, the use of high pressure, high pressure cut off ( Pressure) , low voltage cutoff ( The pressure difference) , low noise, wind erosion and vaporization phenomenon, high temperature, low temperature ( Low temperature) , the recommended pneumatic wedge gate valves. Such as electric power industry, oil refining, petrochemical, offshore oil, water and wastewater treatment engineering, chemical industry and other application fields more urban construction.
product features: pneumatic wedge gate valve, compact structure, reasonable design, pneumatic valve rigidity, channel flow, flow coefficient; , stainless steel and alloy sealing surface, long service life, with flexible graphite packing, sealing is reliable, flexible and convenient operation manual, pneumatic, electric, gear transmission, the elastic wedge single ram, rigid wedge single sliding plate type structure
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