wedge gate valve sealing principle of

wedge gate valve sealing principle is to rely on wedge two seal face and body on the sealing surface on the wedge style together to seal. Is the purpose of using the wedge in order to improve the sealing of secondary load, in order to make the metal hard seal wedge gate valve can not only for high pressure of medium, low to medium pressure to seal. Closing clockwise rotate the valve stem, make the gate Industrial Valves sealing surface and body sealing surface seal and seal. But the metal seal of wedge gate valve produced by wedging effect of inlet side sealing pressure forces are often not enough to achieve by medium inlet side seal. So the metal sealing wedge gate Industrial Valves is a single seal.

wedge gate valve application: wedge gate valve is widely used in petrochemical, oil, steam pipeline, such as coal-fired power plants connected or truncate the medium inside the pipe opening and closing device.

in various types of valves, gate valves is one of the most widely used. It usually is only applicable to full open or full closed and cannot be used to adjust and throttling.

wedge gate valve commonly used in the overall dimensions of the valve without strict requirements, and conditions of use and has a tough situation. As the working medium of high temperature and high pressure, the request to close a inferior to ensure the seal for a long time.

usually, the conditions of use or require reliable sealing performance, high pressure, high pressure cut-off ( Differential pressure) And low pressure as ( Small pressure difference) , low noise, have spirit cave and vaporization phenomenon, high temperature medium and low temperature ( Cryogenic) , it is recommended to use wedge gate valve. Such as the electric power industry, oil refining, petrochemical, offshore oil, tap water and wastewater treatment engineering of urban construction, chemical industry and other fields of application.

wedge gate Industrial Valves structure features: 1, compact structure, rational design, good rigidity, valve channel flow, flow coefficient small 2, the sealing surface of stainless steel and carbide, service life long 3, using the flexible graphite packing, reliable seal, flexible operation of the light 4, drive mode for manual gear transmission, pneumatic, electric, 5, and form for the elastic wedge single ram, rigid wedge single ram of double ram type

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