Weld Spacing; ASME Pressure Vessel

[valvepuke]

My colleague and I are questioning the distance of a nozzel weld from a circumferential weld on a pressure vessel that meets ASME Section VIII requirements. I am sure that the welds cannot be too close together. We do not have a copy of Section VIII to check this vessel against. Can anyone give us the quick and dirty guidelines to help in our evaluation of the construction of this vessel?

 

[Cockroach]

1/16 inch stand-off by code, I specify 3/32 inch as a design practice.

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada

 

[jte]

This wouldn't be the same situation as thread292-288685
would it?

As mentioned in that thread, it is perfectly legal to have a nozzle cross over longitudinal and circumferential seams. A few extra requirements, and client spec's may limit, and a design practice to be avoided, but ok with VIII-1.

jt