Can an elbow be welded directly to the cylinder?
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I’m seeking help from everyone
If possible, add a short circuit; if not, it will have to be welded together
Given the size of the interface flange, it is advisable to add a short circuit.
Asking questions like this~~ makes it impossible to answer. Each situation needs to be analyzed on its own; how can you ask such questions without providing any details! ! !
It is best not to weld elbows directly to the cylinder of pressure vessels, as it is difficult to calculate the reinforcement required for the openings. Atmospheric pressure containers should be fine.
I’ve seen cases where elbows are welded directly to the cylinder, as there simply isn’t enough space; I wonder if there are any explicit regulations regarding this? Same as solving
Anyway, I try my best to avoid such situations; even if the section is short, as long as the welds don’t overlap, I will add a segment. I remember that a few years ago, during the pipeline certification process, the instructor noticed on site that some of our equipment had elbows welded directly to the main body; he said that this is not allowed in pipelines, but I didn’t ask any further questions. . . .
A short circuit should be added to facilitate the installation, maintenance, and disassembly of the subsequent flange
As long as it does not affect welding operations, just weld on the cylinder body. It’s too small to weld easily.
It depends on the size of the elbow; it should be fine for a pressure vessel at normal pressure.
Mm-hmm, thank you. It seems that atmospheric-pressure containers are definitely fine, but pressure vessels require more careful consideration
It’s best to add a short circuit; normally, one is included. Elbows are relatively vulnerable components, and when they need to be replaced, it’s necessary to perform patch welding on the cylinder, which is quite troublesome. In contrast, dealing with pipes is much simpler
Our company’s internal standards don’t allow it