During the use of Sanitary Ball Valve, leakage may occur. The reasons may be as follows:
1. The valve stem is bent or worn;
2. The gland, bolts and other parts are worn, resulting in the gland being unable to be tightened;
3. The packing is installed incorrectly, and there are poor connections;
4. The packing has expired and its performance has declined or been lost;
5. The packing quality does not meet the standards and cannot withstand the corrosion of the corresponding medium, or the packing cannot withstand changes in pressure or temperature.