Reinforcement calculations on rectangular head
Reinforcement calculations on rectangular head
(OP)
I want to add a 3 NPS nozzle to a rectangular header box (3/4" thk) of an air-cooled heat exchanger. The opening does not meet the requirements of UG-36(c)(3) of ASME Sec VIII Div.1. Also, the diameter of the opening exceeds one half of the shortest span of the head as mentioned in UG-39(c). Here, the reinforcement calculations are required to be performed per U-2(g)as mentioned under UG-39(c)(3). If so, are there any references to perform the calculations.





RE: Reinforcement calculations on rectangular head
Edward L. Klein
Pipe Stress Engineer
Houston, Texas
All opinions expressed here are my own and not my company's.
RE: Reinforcement calculations on rectangular head
I don't think if API-661 addresses this issue.
Sam
RE: Reinforcement calculations on rectangular head
Regards the Engineering Tool's for this Requird Analysis FE-PIPE, NOZZLE PRO.
Leonard@thill.biz
www.thill.biz
RE: Reinforcement calculations on rectangular head
Looks like Nozzle-pro deals with circular flat heads and not rectangular flat heads.
Thx,
Sam