Leakage Of Sealing Surface Of Pneumatic Sanitary Ball Valve

Sanitary Ball Valve Reasons:
1. The sealing surface is not ground evenly and cannot form a close line;
2. The top center of the connection between the valve stem and the closing part is suspended, misaligned or worn;
3. The valve stem is bent or assembled incorrectly, causing the closing part to be skewed or not centered;
4. The quality of the sealing surface material is improperly selected or the valve is not selected according to the working conditions.

Maintenance method:
1. Correctly select the material and type of the gasket according to the working conditions;
2. Carefully adjust and operate smoothly;
3. The bolts should be tightened evenly and symmetrically. If necessary, a torque wrench should be used. The preload force should meet the requirements and should not be too large or too small. There should be a certain preload clearance between the flange and the threaded connection;
4. The gasket assembly should be aligned and evenly stressed. The gasket is not allowed to overlap or use double gaskets;
5. The static sealing surface is corroded, damaged, and the processing quality is not high. It should be repaired, ground, and color checked to make the static sealing surface meet the relevant requirements;
6. Pay attention to cleaning when installing the gasket. The sealing surface should be cleaned with kerosene and the gasket should not fall to the ground.