ASME Sec VIII Div I Appendix 2 flanges: hydrotest pressure criteria

[nipra03]

Hi All,

Is it correct to to assume that a slip on flange designed to appendix 2 (say 275 psig design pressure) is also by default capable to withstand the full hydrotest pressure of 1.5 times the DP as allowed for say a B16.5 flange ?

Per my understanding,the code does not directly address this.

regards

 

[TGS4]

No. It is intended to withstand the hydrostatic test as described in UG-99.

That's not to say that it won't break, and may be just fine. Perhaps you should define "withstand"?