Butterfly valve may occur and eliminate the fault

2023-01-23 13:07:09

Butterfly fault: sealing surface leakage 1, butterfly valve disc, seal folder with debris. 2, the butterfly valve, seal close position consistent. 3, the export is equipped with flange bolts force are not compressed. 4, the pressure test direction not required. Elimination method: 1, eliminate impurities, cleaning the valve cavity. 2, adjust the limiter screw of the actuator such as worm gear or electric actuator to achieve the correct valve closing position. 3, check with the installation flange plane and bolt pressing force, should be evenly compressed. 4, according to the arrow direction of spinning. Butterfly fault: leakage of the valve on both ends 1, both sides of the gasket failure. 2, the flange pressure uneven or not compressed. Elimination method: 1, replace the gasket. 2, press the flange bolts (uniform force).

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