How to wire the actuator torque of pneumatic water seal butterfly valve? 2) The method to increase the width of the sealing surface, stop the jumping of the flat valve core when it is closed and reduce its leakage. The flat valve core (such as the valve plug of the two position valve and the sleeve valve) has no guiding and guiding surface in the valve seat. Since the valve core is subject to lateral force when it is working, from the inflow side to the outflow side, the larger the fitting clearance of the valve core, the more serious this unilateral phenomenon, coupled with deformation and misalignment, Or the chamfer of the valve core sealing surface is small (generally 30 ° chamfer to guide), so when it is close, the chamfer end face of the valve core sealing surface will be placed on the sealing surface of the valve seat, causing the valve core to jump when it is closed, or even the valve core can not be closed at all, which greatly increases the valve leakage. The simple and effective solution of zui is to increase the size of the sealing surface of the valve core, so that the small diameter of the zui on the end face of the valve core is 1~5mm smaller than the diameter of the valve seat, which has sufficient guiding effect to ensure that the valve core guides into the valve seat and maintains good contact between the sealing surfaces.
、 Its advantages are far more than these, because the new streamline style design is used in the design, which can play a very good role in removing obstacles when butterfly valves are used among various fluid materials, and can achieve a more comprehensive and beautiful use experience.
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