1. The leakage at both ends of the Butterfly valve china is caused by the seals on both sides. Uneven or uncompressed pipe flange pressure. Replaceable sealing ring, evenly compresses flange bolts.

Butterfly valve china

2. The leakage of the Butterfly valve china valve is caused by the Butterfly valve china plate, and there are sundries in the sealing ring. Butterfly valve china and seal position is wrong or outlet flange bolts are not evenly pressed. The stress test deviation does not meet the requirements. Removes impurities, including valve steel. Adjust turbine or electric actuator, limit screw to achieve correct position for valve closure. The stress test deviation does not meet the requirements. We want to rotate according to the bias of the arrow.