Inspection Opening WRC 107 Question
Inspection Opening WRC 107 Question
(OP)
I have a 20" od x .25" wall inspection opening in a 36" od x .25" wall shell. Per Section VIII, Div.1, the reinforcement calculation passes. However, the WRC 107 calculation fails. The only load to be considered is the weight of the flange/cover/nozzle of the opening, and since it is located on the top of the vessel, this loading opposes the shell pressure. Does it make sense that the WRC 107 calculation fails?
Thanks in advance for your input.
Thanks in advance for your input.





RE: Inspection Opening WRC 107 Question
RE: Inspection Opening WRC 107 Question
That doesn't seem to be overstressed. The flange combination is about 470 lb for 150 flanges. The access is on a horizontal shell.
How does this compare to your numbers?
RE: Inspection Opening WRC 107 Question
Anybody have any background on when kb and kn? If you are including effects of thermal stresses, should kb=0?