Compute Thickness Based on Flange Rigidity - PV Elite - Help

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Appendix 2 contains equations that attempt to determine whether or not a given flange geometry will leak. If the computed rigidity factor is > 1.0, then leakage is predicted.

  • Appendix 2 calculations are mandatory as of Addenda-2005 and flange designs must satisfy these calculations. These rigidity factor calculations are not mandatory for Pre-1999 Addenda users

  • Appendix S is non-mandatory appendix and that these calculations are also non-mandatory.