Requirements for weld spacing
Thread Content
The distance from the weld to the starting point of bending in a bent pipe (excluding press-bent, hot-rolled, or medium-frequency bent pipes) must be no less than 100 mm, and it must also be no less than the outer diameter of the pipe. How should this sentence be understood? Thank you to all friends who pass by
This requirement applies to very thick pipes; smaller pipes don’t have a requirement of 100 mm. It is likely that the rule prohibits welding directly at the junction between a straight pipe and an elbow, so the elbow itself must have a straight section of more than 100 mm, and this straight section is welded to the pipeline
Just make the weld distance greater than the maximum of the two values, right?
For pipe diameters greater than 100 mm, such as 133 mm, the distance should be greater than 133 mm