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Rigidity Calculation Requirements for ASME Sec VIII Div 1 Nozzles.

Rigidity Calculation Requirements for ASME Sec VIII Div 1 Nozzles.

Rigidity Calculation Requirements for ASME Sec VIII Div 1 Nozzles.

(OP)
Is there a specific requirement in ASME Section VIII Div 1 for the regidity calculations to be performed on (Example) an 18" manway in a pressure vessel?

If so, where is this stated?

Thank you,

Woodsman

RE: Rigidity Calculation Requirements for ASME Sec VIII Div 1 Nozzles.

Mandatory Appendix 2-14. The Code does not differentiate with respect the the purpose/use of any particular opening.

RE: Rigidity Calculation Requirements for ASME Sec VIII Div 1 Nozzles.

Be aware that nozzles used for massive center-mounted mechanical mixers/agitators do have rigidity requirements.

Large, thin walled tanks with massive agitators have failed in the past, as they rock thier way to cracks and ultimate failure.

Info here:

http://www.eng-tips.com/viewthread.cfm?qid=237691

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