On the process pipeline or equipment, the installed industrial valves often have various faults due to the nature of the medium, the use environment, the frequency of operation, the product quality and other factors, which sometimes not only affect the production, but also bring disasters. Therefore, the protection should be strengthened and the faults should be eliminated in time. For example:
Symptom: the sealing ring is not tight.
Cause of failure:
1. The valve seat and valve body are not closely matched; Impurities enter the sealing surface.
2. The auxiliary tools used to close the valve are improper and too tight.
Treatment method:
1. Repair the sealing ring;
2. Use proper force, and do not use the force bar to open and close the valve.
