Hi,

I have a question regarding API 650 11th edition appendix P and max allowed loads that Caesar compute them based on our input data.
when i compare calculated piping nozzel load with max. allowed loads, i can not pass them but when i calculate max stress from piping nozzle loads based on alternative procedure for evaluation of external loads on tank shell openings(API 650, P.3) and compare it with allowable stress, i can pass them.

which comparison is OK? and what are the differences between them?

Thanks in advance