Can the standard electric two-way valve of pneumatic flap seal butterfly valve be replaced by butterfly valve? The seal formed by the semi pneumatic butterfly valve is spherical seal, so Q=Q | F+QQ=qMF (DMW _DMN), Mm2Q is the static pressure of the medium acting on the sealing surface, the force acting on the NQ MJ sealing surface when reaching the required specific pressure. N6 is the width of the sealing belt, the half angle of the contact between the mma sealing surface and the spherical surface, and the friction coefficient of the sealing surface of (.) Plant M is the medium pressure, MPa; Inner diameter of sealing surface, mmD, outer diameter of sealing surface, mm? The dynamic and static sealing structure of the valve stem and the fixed mandrel is to ensure that there is no dynamic and static leakage point in the structure of the valve, and to ensure the safety of the service environment of the valve, which is particularly important for the transportation of high temperature, high pressure and harmful media.
、 Another aspect is that for the entire production of pneumatic butterfly valves, it is also important to pay attention to what kind of production process it is in the product, because when the product is used by itself, what kind of production process it can achieve is often very different from its products, so for users, when they use its products, It also depends on its production process.
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