How to solve the problems of internal and external leakage of fluorine lined gate valves?

In the industrial field, Fluorine lined gate valve The problem of internal and external leakage can be said to be quite common, so how can we solve such a problem? Today, the editor will provide a detailed introduction for everyone.
1. External leakage handling method:
Sino French flange leakage: In the case of Sino French flange leakage, the first step is to try tightening the bolts of the middle flange again. If the problem is still not resolved, it is necessary to check whether the flange gasket is damaged. If it is damaged, it needs to be replaced.
Leakage at the packing point: To address the issue of water leakage at the packing point, it is necessary to tighten the packing gland. If the packing is loose, it should be added in a timely manner. If the leakage is directly caused by the valve body, welding repair can be attempted for low-pressure systems; As for the high-pressure system, in order to ensure safety, repair should be abandoned and new valves should be replaced.

2. Internal leakage treatment method:
Re tighten the valve: First, try to re tighten the valve with force to ensure that it is completely closed.
Valve seat seal damage: When the valve seat seal is damaged, it needs to be re ground. 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. Damage caused by erosion can be repaired by re welding the sealing surface, while damage caused by medium impact also requires welding repair.
The above is an introduction to the solutions for internal and external leakage of fluorine lined gate valves. At the same time, the editor needs to remind everyone again that safety is the first factor to consider when dealing with water leakage problems in high-pressure systems. If there may be risks in repairing, it is recommended to give up the repair.