Dear All,
I am not a static equipment engineer (S E E). I have a question to all S E Es on this forum. The ASME pressure vessel code calculations are only to decide if the requirement of reinforcement is there or not. So:

1) If integrally reinforced branch outlets OR LWN flanges are used for nozzles, is there a need to do the calculations for the openings?

2) Do we have to do any other calculation for opening apart from the area reinforcement requirement calcs?