This brief discussion investigates the central joint of a 12” split-body butterfly valve using Finite Element Analysis (FEA) interpreted per the ASME VIII-2 2007 Code, as permitted by ASME B31.3-2008. The observations are primarily of a qualitative rather than a quantitative nature. Also, this is not a comprehensive report such as is used to submit to a Canadian Jurisdiction for CRN registration. Rather, it illustrates how FEA is used to fill in gaps in the classical ASME Code configurations and how it can replace burst testing for proving an acceptable design pressure.
See Link to this Brief Discussion here.