Minimum Nozzle Weld Size
Minimum Nozzle Weld Size
(OP)
I am not clear if there is a minimum weld size requirement on the inside of a nozzle which is welded as a full penetration weld to a cylindrical shell. The configuration is as per Fig. UW-16.1(e) of ASME Sec. VIII Div.1 but has an internal projection of say 2". There is no repad required as the reinforcement area meets the code requirements (self reinforced). My question is, if "tc" as indicated in Fig. UW-16.1(h) is applicable to Fig. UW-16.1(e) with an internal projection. Some software programs like APV shows a minimum requirement (tc), someothers don't. Appreciate any insights into this issue.





RE: Minimum Nozzle Weld Size
RE: Minimum Nozzle Weld Size
RE: Minimum Nozzle Weld Size
RE: Minimum Nozzle Weld Size
GB
RE: Minimum Nozzle Weld Size
I personally believe that figure UW-16.1 (h) is a good indicator that the intent of code is that full penetration nozzle neck to shell welds that have internal projection have a minimum size internal fillet weld. I also believe it is not good engineering practice to leave a hard 90° corner at a stress point such as this one.
Are there any intepretations addressing this that anyone has read?