Leak in high-pressure welding valve
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I would like to ask the experienced experts on this forum: there is a leak at this hole in the high-pressure welding valve. How should it be dealt with?
1. What is the official name of this hole? What is its purpose? How can it be handled without stopping production?
Hello! For leaks in high-pressure welding valves, it is first necessary to determine the exact location of the leak. If there is air leakage at the weld, it may be necessary to re-weld or repair the weld. Make sure to close the valve and release pressure before operating to ensure safety. It is recommended to have professional repair personnel handle it to avoid the risks associated with attempting repairs on your own. If the leakage is severe, consider replacing the valve with a new one. I hope this can help you! .
This post was last edited by vszxp on 2024-8-27 at 19:24. The hole in this location is typically used for the process of removing the four-ring assembly; if leakage occurs here, it indicates that the wedge gasket below has failed to provide a proper seal. Attempting to tighten the fasteners of the valve core (valve cover) can help prevent leakage
It’s best to check the drawings to confirm the location and function of the holes. Wood seals generally have process holes for removing the 4-lip ring in this location. Wood seals are generally used in high-pressure systems. If a wood seal is used, it will be difficult to deal with leaks from this hole. Wood seals operate on a self-tightening principle; one can only check whether all the components are in place and whether they are aligned properly.
The 4th floor is the correct answer. Caused by failure of the sealing ring
Tighten the bolts holding the packing; if that doesn’t work, replace the packing.
It’s because the self-sealing ring has leaked; tighten the self-sealing lifting bolts on the gland. If that doesn’t work, it will be quite troublesome
If there is a leak under high pressure, it’s basically because the self-sealing mechanism of the upper cover has failed; in such cases, tightening it isn’t useful and the cover needs to be replaced. If a leak occurs at low pressure, one can tighten the small screws around the upper cover to lift it slightly, which might help – this applies when the leakage is not caused by the packing, and there’s no need to adjust the valve stem seal