What are the working principle of pneumatic valve?

Pneumatic valve consists of body and pneumatic device, its characteristic is that the valve with valve plate; Pneumatic device including cylinder, and shaft rotational connection arm; Cylinder driving rod end end connection rotation connection arm, rotating connection arm at the other end of the connection shaft end end, central axis and the valve plate connection, the connection arm connected to the driving rod rotation, connected to the rotating shaft is fixed. This pneumatic valve has simple structure, at the same time, the valve plate and valve body frame adopts wear-resisting material, prolongs the service life of more than one times. Pneumatic valve is used with the rotating circular plate for opening and closing of the valve orange, enabling action in order to realize the main block valves use pneumatic valve, can be designed to have a adjustment or section of the valve and the adjustment function, disc valve on the low voltage and medium caliber pipe used more and more. Valve has simple structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, simple operation, at the same time the electric valve has good flow control characteristics. Valve in the fully open position, the plate thickness is medium flows through the body when the only resistance, so by the valve pressure drop is small, it has good flow control characteristics. Valve seal and metal sealing machine has two sealing type. Elastic sealing valve, sealing ring can be embedded in the body or attached to the plate peripheral. If required valve used as flow control, mainly is the right choice of the size and type of valve. The structure of the valve principle, especially suitable for production of large diameter valves. Valve not only in the oil, gas, chemical industry, water treatment and other general industrial used widely, but also applied to the cooling water system of thermal power plants. See more pneumatic valve