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

china Butterfly valve

2. China Butterfly valve valve leakage is caused by China Butterfly valve plate, and there are sundries in the sealing ring. China Butterfly valve and seal position is wrong or the 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.