As a common type of valve, ball valves have extensive applications in the industrial field.  However, during long-term use, ball valves may encounter various issues.  Below, we will introduce several common problems with ball valves and their corresponding solutions.
1、Leakage problem
       Leaks can occur at the valve seat, stem, or other connection points.  The causes of leaks may vary, such as aging or damage to seals, or improper installation.  To address this issue, maintenance personnel need to inspect and replace damaged seals, ensure proper installation, and regularly clean and maintain the ball valve to maintain its good sealing performance.
 2、card blocking phenomenon
      The ball valve may sometimes encounter the phenomenon of sticking, meaning it is not flexible or cannot be fully closed during operation.  This could be due to increased friction between the ball and the seat, accumulation of impurities, or poor lubrication.  To address this issue, maintenance personnel need to regularly clean the internal impurities of the ball valve, keep the ball and seat clean, and apply an appropriate amount of lubricant to ensure the smooth operation of the ball valve.
 3, the seal is not tight
      This may be due to wear of the sealing surface, aging of the seal or improper installation.  To solve this problem, maintenance personnel need to check the wear of the sealing surface, replace the worn seal in time, and ensure the accuracy and tightness during installation.
 4、Other common problems and solutions
       In addition to the three common issues mentioned above, other problems may also arise, such as valve stem breakage and transmission mechanism failure.  These issues are usually related to the material of the ball valve, manufacturing process, and usage environment.  To prevent these problems, maintenance personnel need to regularly inspect all components of the ball valve, ensuring they are in good condition and promptly address any potential safety hazards.
      In short, various problems may be encountered during the maintenance of ball valves. However, as long as maintenance personnel master the correct maintenance methods and techniques, these problems can be effectively resolved to ensure the normal operation of the ball valve.  At the same time, regular maintenance and care are also key to extending the service life of the ball valve.