Selection of socket welding
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I examined the piping materials for a certain project; from utility systems to process media, pipes, fittings, and valves with DN15–40 sizes are all welded together, regardless of their thickness. I told them that some could be socket-welded, and the reply was that welding would only be done on-site; it’s frustrating. Is socket welding more difficult than butt welding?
For butt welding, there is no need to leave a straight pipe section; for socket welding, a sufficient straight pipe section must be left
Plug welding doesn’t require beveling; moreover, it prevents misalignment and burn-through at small diameters. It’s actually simpler than butt welding
It is estimated that the current during on-site welding is very high, so it is easy to burn through the pipes.
If the construction cost doesn’t increase, it doesn’t matter whether to use socket welding or butt welding; of course, butt welding is better
Relatively speaking, it is indeed a bit simpler to weld, and the weld quality is better. However, in the past when we used smaller sizes, we would still opt for socket welding
Plug welding requires relatively lower sealing standards. Moreover, radiography is not possible for socket welding; therefore, socket welding can be used when the pipeline pressure is low and the risk is minimal.
It doesn’t seem to be there any particular difference in terms of usage; for DN15–40 pipes, fittings, and valves, some are fitted by socket welding while others are welded by butt welding, unless there are special requirements!
Hey, the person upstairs, we’re facing the same problem. We need to make some minor modifications now; the owner says that socket welding should not be used and that all welds should be butt welds. I’m wondering how to describe this ? ?
As long as the standards permit it, you can choose any design you like. . .
Here, we require that socket welding can be used for sizes below DN40! That’s it for welding!