Fillet Weld Size for Nozzle / Shell Joint (Div 2)

Dear wijeesh

you must first calulate the fillet weld size according to Para. 4.5 in ASME sec VIII - 2 Design Rules for Openings in Shells and Heads . and apply all rules which required in this paragraph and the next paragraphs, then compare between the size of fillet weld which you calculated and the values in table 4.2.10 .

if the calculated fillet weld size less than the values in tables - and that will not occurs - then select the maximum value from the table and it will be safe.

AND remember : Table 4.2.10 - represent Some acceptable full penetration welded nozzle attachments not readily radiographable.

look out : rules in paragraph 4.5 apply in case of the ratio of the inside diameter of the shell and the shell thickness is less than or equal to 400. In addition, the ratio of the diameter along the major axis to the diameter along the minor axis of the finished nozzle opening shall be less than or equal to 1.5.