Butterfly check pneumatic valve buffer structure characteristics

, butterfly buffer check pneumatic valve pneumatic valve disc, pneumatic seat around the tunnel axis rotation, because of the channel into a streamline of the pneumatic valve, flow resistance is smaller than l butterfly check pneumatic valve, suitable for low flow velocity and flow not often change the large diameter of occasions, but should not be used for oscillating flow, its sealing performance than lift. Pneumatic valve butterfly check points, single type, double disc type and mostly type three, the three forms mainly by the pneumatic valve diameter, the purpose is to prevent the backflow medium flow or stop, decrease hydraulic shock.
, butterfly buffer check pneumatic valve, pneumatic valve pneumatic valve body along the vertical centerline sliding check pneumatic valve, internal thread check pneumatic valve can only be installed in horizontal pipe runs with the high pressure small check pneumatic valve pneumatic valve can be used on the ball. Butterfly check pneumatic valve pneumatic valve body shape as well as by the pneumatic valve ( To stop pneumatic valve general) Fluid resistance coefficient is larger, so it. Its structure is similar to stop pneumatic valve, pneumatic valve body and disc is the same as the cut-off pneumatic valve. Pneumatic valve upper part and lower part of the pneumatic valve cover processing has a guide sleeve, Jane Jane pneumatic disc guide can be freely within the pneumatic valve light guide Jane, when medium downstream, pneumatic disc by medium thrust open, when stop the flow of medium, landing on the hanging in the pneumatic pneumatic valve seat valve, prevent medium counter-current role. Straight-through butterfly check pneumatic valve medium import and export channel direction and pneumatic seat vertical direction; Vertical lift check pneumatic valve, its media channel direction and pneumatic valve seat in the same direction of imports and exports, its a straight-through flow resistance is small.
, butterfly buffer check pneumatic valve, pneumatic disc around a pneumatic seat within the pin shaft rotation check pneumatic valve. Butterfly check pneumatic valve has simple structure, can only be installed in horizontal pipe runs, sealing is good.
, butterfly buffer check pneumatic valve, pneumatic valve disc sliding along the center line of the pneumatic valve pneumatic valves. Pipeline check pneumatic valve is a new kind of pneumatic valve and its small size, light in weight and good fabrication procedure, check the pneumatic valve is one of development direction. But fluid resistance coefficient than the swing check valve is slightly larger.
, the compression type check pneumatic valve: this pneumatic valve is used as boiler feed water and steam to cut off the pneumatic valve, it can lift check pneumatic valve pneumatic valve and globe or Angle valve of the comprehensive function.
butterfly buffer 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, pneumatic valve, also known as non-return, one-way pneumatic valve, pneumatic valve and back pressure pneumatic valve upstream. 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.
butterfly buffer check pneumatic valve categories:
check 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) 。 The pneumatic valve average installation.
this type of pneumatic valve's role is only allowed to medium flows in one direction, the direction and stop the flow. 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.
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. Balance 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.