About the soft sealing gate technology design scheme of pneumatic valve by friction

entry sealing way, this pneumatic valve for double parallel pneumatic gate valve. Inlet pneumatic valve plate is composed of gland and discharge the strength to move valve plate seal gate. Gland and discharge the strength to move valve plate synchronous movement but not connected, pipeline pressure by unloading strength to move the valve plate, leveling lever to export the pneumatic valve seat, which will greatly improve the adhesion strength of the soft sealing surface. Pneumatic valve plate set with corrosion resistant rubber seal set outside. Soft sealing material in the process of opening and closing, and pneumatic seat stick to a certain distance, make the soft sealing material when there is no friction, no fold the working pressure of the environment. Seal set of pipes conveying fluid with pneumatic valve core components in isolation, from the block of the impurities and corrosion of liquid. The pneumatic valve sealing material change is very convenient, so the service life is generally brake times of pneumatic valve. A, technical background:

is only a slight deformation or corrosion, sealing surface of the existing pneumatic valve in the pneumatic brake valve, pneumatic valve cover and parts are in good conditions. You can't use pneumatic valves. Fix the non-professional pneumatic valve factory, so caused great waste. So hope of brake units used pneumatic valve is pneumatic valve seat, valve plate seal face is not easy to deformation, corrosion resistance, delicate sealing materials may be substituted. Pneumatic valve plate in opening and closing with no friction or try to reduce friction, this will prevent all kinds of lack of pneumatic soft sealing gate valve.
2, the purpose of the invention can automatically compensate
pneumatic valve plate and the pressure of tight cover, with soft sealing gate pressure automatic balance problem between pneumatic valve, pneumatic seat and pneumatic sealing face of valve plate corrosion or after deformation. Solve the soft sealing materials by friction and damage the sealing surface of the problem, because the brake of the pneumatic valve seal set can be change, greatly increase the use of pneumatic valve.
3, practical scope:
size phi - Phi mm pressure. - 。 MPa less than ℃ temperature liquid
4, technical scheme: