Silencing check pneumatic valve: knowledge

silencing check flow pneumatic valve refers to rely on the media itself, and automatically open, her breath valve, used to prevent the backflow medium pneumatic valve, also known as non-return pneumatic valve, pneumatic valve, one-way silencing check pneumatic valve, pneumatic valve upstream and back pressure pneumatic valve. Check pneumatic valve belongs to a kind of automatic pneumatic valve, its main role is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. Check the pneumatic valve can also be used to give the pressure could rise to more than the system pressure of the auxiliary system supply piping. Check the pneumatic valve mainly can be divided into pneumatic valve, swing check In accordance with the center of gravity rotating) Pneumatic valve and lift check ( Move along the axis) 。
silencing check pneumatic valve's role is only allowed to medium flows in one direction, the direction and stop the flow. The country's main pneumatic valve equipment co. , LTD. The manufacturer has the right to work. This pneumatic valve is normally automatic work, in a direction of flow of fluid pressure, pneumatic valve open; In the opposite direction of fluid flow, the fluid pressure and pneumatic disc from the overlap of pneumatic disc on the pneumatic seat, thereby cutting off flow. Should not be used in large medium containing solid particles and viscosity.
with internal thread check pneumatic valve, pneumatic valve is butterfly check belong to this type of pneumatic valve, which includes swing check pneumatic valve and lift check valve. Swing check pneumatic valve with the humble hinge institutions, there is also a pneumatic disc like door freely on the tilt of the pneumatic valve seat surface. In order to ensure that each pneumatic valve pneumatic valve seat surface to appropriate location, pneumatic in valve design hinge agencies, in order to pneumatic valve kai xuan has enough space, and make the pneumatic disc real and comprehensive engagement with the pneumatic valve seat. Pneumatic valve can be made from metal, can be embedded in the metal on leather, rubber, or synthetic coverage, depending on the use of performance requirements. Swing check pneumatic valve in the fully open conditions, almost unimpeded fluid pressure, so the pressure drop through the pneumatic valve is relatively small. Aerodynamic lift check valve is located on the pneumatic valve pneumatic pneumatic valve seat valve sealing surface. This pneumatic valve in addition to the pneumatic disc is free to lift, like the rest of the cut-off pneumatic valve, fluid pressure from pneumatic pneumatic valve seat valve seal surface lift, medium return led to pneumatic disc to seat, and cut off the flow. According to the conditions of use, pneumatic valve can be all-metal structure, can also be embedded in pneumatic disc shelves rubber mat or rubber ring form. Like stop pneumatic valve, fluid through the lift check pneumatic valve channel is narrow, therefore the aerodynamic lift check valve through the pressure drop than the swing check some pneumatic valve, pneumatic valve and swing check are very few restrictions.