Compress - ASME Sec VIII Div 1 - Appendix 2 Flange Stress Calculations
Compress - ASME Sec VIII Div 1 - Appendix 2 Flange Stress Calculations
(OP)
Compress Question
In the calculations Compress completes I believe Compress uses the following equation (Appendix 2 Notation)
HG=Wm1-H (Where HG=gasket load)
Why Doesn't it use
HG=Max(Wa, Wm1, Wm2)-H
which in some cases could be more conservative
HG is then used to determine MG-> Mop
And Mop is used to calc the operational stresses SH, SR and ST
Thanks
In the calculations Compress completes I believe Compress uses the following equation (Appendix 2 Notation)
HG=Wm1-H (Where HG=gasket load)
Why Doesn't it use
HG=Max(Wa, Wm1, Wm2)-H
which in some cases could be more conservative
HG is then used to determine MG-> Mop
And Mop is used to calc the operational stresses SH, SR and ST
Thanks
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RE: Compress - ASME Sec VIII Div 1 - Appendix 2 Flange Stress Calculations
HG is defined as W-H. W is defined in Appendix 2-5(e). For operating condition, W=Wm1.
Compress is just following the code.
RE: Compress - ASME Sec VIII Div 1 - Appendix 2 Flange Stress Calculations
My first conclusion was that HG=W-H where for the operationg condition W=Wm1
Since in the field, the bolts should be tensioned to meet the most sever condition, ie. max of (Wa, Wm1 and Wm2).
That once the section of equipment is operating, would HG = Max(Wa,Wm1,Wm2)-H better represent the load in the bolts?
RE: Compress - ASME Sec VIII Div 1 - Appendix 2 Flange Stress Calculations