reinforcement of openings
reinforcement of openings
(OP)
Other that the methods outlined on the fired and unfired pressure vessel codes, is there another method to calculate the amount of metal for reinforcement in the shell opening and in the nozzle.





RE: reinforcement of openings
but not if you want to apply a code stamp
RE: reinforcement of openings
RE: reinforcement of openings
Joe Tank
RE: reinforcement of openings
The API-650 and AWWA D100 tank codes include reinforcing provisions that are generally more liberal (and simpler) than ASME. They're still based on area-replacement, but allow more of the neck to be included, for example.
The codes and standards vary as to the size a nozzle must be before it is reinforced.
RE: reinforcement of openings
http://paulin.com/NozzlePRO.aspx
RE: reinforcement of openings
RE: reinforcement of openings
RE: reinforcement of openings
Regards,
Mike
RE: reinforcement of openings
If he is doing a Div 1 vessel, FEA is not going to help him. He still have to meet the Code calculated value per uG-37 no matter what.
TGS4,
As I recall, the new alternate method you mentioned in the new Div. 2 is only for self-reinforced nozzles. You can't apply that to a nozzle that uses a repad. I think some jurisdictions are still evaluating whether to allow it or not as the method will yeild a much thinner nozzle wall than traditional way. I haven't had a chance to use it yet and this is what I hear from our boilers branch meeting. Others please provide insight if you got some to share on this method.
RE: reinforcement of openings
Thanks to all responders
RE: reinforcement of openings
You are also correct about the method not being useful/useable for repad reinforcement. There is a movement afoot to bring this new method as an alternative/non-mandatory appendix into Div 1.
RE: reinforcement of openings