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Principle and Characteristic Analysis of Pneumatic Butterfly Valve
Pneumatic butterfly valve butterfly is used with the rotation of the butterfly valve orange butterfly opening and closing to do to enable the opening action. Pneumatic butterfly valve butterfly valve to do the main cut-off valve can also be designed to adjust or segment valve and adjust the function, the current valve in the use of low-pressure large and medium-diameter pipe more and more. Pneumatic butterfly valve butterfly valve on the main advantages: simple structure, small size, light weight, low cost, pneumatic butterfly valve mounted on the air in the next pass, after two five-way solenoid valve control easy to operate, but also adjustable flow media. This feature is particularly significant. Fluid resistance is small, medium and large diameter pneumatic disc valve fully open when the effective circulation area larger, quick opening and closing effort, the disc pull rotation angle of 90 to complete the opening and closing, as the disc on both sides of the disc drive medium force close to equal, And the resulting torque in the opposite direction, so the opening and closing torque is small, low pressure can be achieved good seal, pneumatic butterfly valve seal material with nitrile rubber, fluorine rubber, edible rubber, lining PTFE so good sealing performance, including hard Sealing disc valve is a soft and hard laminated metal sheet, with a metal hard seal and elastic seal weight advantages, both in the case of low temperature have excellent sealing performance.