Valve installation issues
Thread Content
There is a problem: the valve comes with internal threads. Is it possible to screw the pipe in first and then weld it, thus creating a socket-type connection?
This situation is not desirable. Firstly, welding requires very high temperatures, and the sealing surfaces of valves as well as their valve discs cannot withstand such high temperatures; high temperatures can cause the valve’s structure to deform, thereby affecting its sealing performance. Secondly, if the pipe is screwed into the internal threads and then welded, it becomes very difficult to remove or replace the valve, as the pipe and the valve are welded together and cannot be detached as easily as with socket-type valves. The proper approach is to weld the pipes first, and then install internal-threaded valves that are suitable for the pipe size; this ensures the proper functioning of the valves while also facilitating their maintenance and replacement in the future. .
You’re welcome; I’m glad to have been able to help you solve the problem. If you have any other questions, feel free to ask me at any time. .
Based on the described situation, for this type of valve, it is sufficient to remove the valve core and then weld it. The main thing is to protect the non-metallic seals inside the valve body. For reference.