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Rectangular vessel Hydrotest condition >1.3*DP*LSR

Rectangular vessel Hydrotest condition >1.3*DP*LSR

Rectangular vessel Hydrotest condition >1.3*DP*LSR

Good day to all,
For rectangular vessel(Header box), I am aware that one should apply Appendix 13 as per ASME code. However if my hydrotest value is higher than 1.3*design pressure* LSR, how do I validate that the vessel strength is acceptable at the higher pressure theoretically. For cylindrical shape, the program I am using applies hydrotest condition for the same formulaes provided in section VIII and compared stress <0.9SY. I used to think i can follow likewise for rectangular vessel but now i am feeling doubtful. Thank you for any advice!

Yours Sincerely

RE: Rectangular vessel Hydrotest condition >1.3*DP*LSR

See App. 13-16, which diverts back to subsect A for Inspection. The rules of UG-99 apply.

- You never get what you expect, you only get what you inspect.

RE: Rectangular vessel Hydrotest condition >1.3*DP*LSR

Good day,
Thank you!

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