Weld distance
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The distance from the temperature nozzle of a pressure pipeline to the weld should not be less than ( ) mm, and the distance from it to the flange should not be less than ( ) mm. Everyone, please help solve this. Thank you.
It seems a bit too large; is there any basic principle to explain this?
That’s right; it’s a regulatory requirement, with no underlying principle.
I think the minimum is the pipe diameter; when the pipe diameter is less than 100 mm, it should be at least 100 mm.
The distance from the temperature nozzle of a pressure pipeline to the weld should not be less than (50) mm, and the distance to the flange should not be less than (50) mm.
I hope that colleagues will, when providing their answers, also cite the relevant standards, so as to support their views with evidence and make them more convincing. Those who work in design need to have a rigorous approach: lol. This value can be determined by referring to the \"minimum structural dimensions for pipe connections\" – there are specifications regarding the distance from openings to flanges and welds. The value varies depending on the DN of the pipe; there is no fixed value. If conditions permit, it’s of course better to use a larger value: lol. Please have the original poster take a look~~
If anyone finds it, please mention the source so that it has a basis.