A, technical background: the existing gate valves in the valve body, valve cover, and the parts are in good condition, is simply the sealing face slightly deformation or corrosion, the valve will not be able to use. Repair these valves are not professional factory, so caused great waste. So using unit hope gate Industrial Valves is: seat, valve plate seal face is not easy to deformation, corrosion resistance, delicate sealing materials may be substituted. plate in the opening and closing with no friction or try to reduce friction, it can avoid the shortcomings of the soft-sealing gate valve. Invention purposes: to solve the sealing face of the valve seat and valve plate corrosion or after deformation, can automatically compensate the valve plate and close the cover pressure and pressure automatic balance problem between soft-sealing gate Industrial Valves, solve the soft sealing material by friction and damage the sealing surface of the problem, because the gate valve seal set can be change, greatly increase the use of the valve. Three, the practical scope: size 50 - phi Phi 400 mm, pressure 2. 5 - 4. 0 mpa, less than 200 ℃ of liquid at room temperature 4, technical scheme: this valve as double parallel slide valves, entry sealing way, the inlet Industrial Valves plate mainly composed of gland and discharge valve plate seal gate. Gland and unloading valve plate synchronous movement but not connected, pipeline pressure through the discharge valve plate, leveling lever to export the seat, which will greatly improve the adhesion strength of the soft sealing surface. The outside of the valve plate set with corrosion resistant rubber seal set. Soft sealing material in the process of opening and closing, and the seat to keep a certain distance, make the soft sealing material when there is no friction, no fold the working pressure of the environment. Gland will be inside the pipe conveying fluid and valve core component segregation, from the block of the impurities and corrosion of liquid. The valve sealing material change is very convenient, so life is 5 times more than general gate valves. In this paper, the keyword search: seal gate valves
An increasing dependence on the use of gate valve os & y valve fire protection has made numerous changes in the y gate valve industry over the past decades.
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