How To Solve The Internal And External Leakage Problems Of Fluorine-lined Gate Valves?

In the industrial field, the problem of internal and external leakage of Lined Gate Valve can be said to be relatively common, so how to solve such a problem? Today, the editor will introduce it in detail.
1. External leakage treatment method:
Middle flange leakage: For the case of leakage in the middle flange, you can first try to tighten the bolts of the middle flange again. If the problem is still not solved, you need to check whether the middle flange gasket is damaged. If it is damaged, it needs to be replaced.
Packing leakage: For the leakage problem at the packing, you need to tighten the packing gland. If the packing is loose, add packing in time. If the valve body is leaking directly, for low-pressure systems, you can try welding repair; as for high-pressure systems, in order to ensure safety, you should give up repair and replace a new valve.
Fluorine-lined gate valve
2. Internal leakage treatment method:
Re-close the valve: First try to re-close the valve with force to ensure that the valve is completely closed.
Valve seat seal damage: When the valve seat seal is damaged, it needs to be re-grinded. This is an effective way to solve internal leakage and ensure sealing performance.
Valve core damage: If the valve core is found to be damaged, it needs to be repaired according to the cause of the damage. The sealing surface can be re-welded for erosion damage, and welding repair is also required for damage caused by medium impact.
The above is an introduction to the solution to internal and external leakage of fluorine-lined gate valves. At the same time, the editor needs to remind everyone again that when dealing with water leakage problems in high-pressure systems, safety is the first factor to consider. If there may be risks in repair, it is recommended to give up the repair.