Thanks for the response. The task that I've been assigned is to layout several turbine piping configuration that can be tied back to a 6 way restraint (anchor) so we have a modular system that we know will work for future projects.
I've anchored my system at the point of zero growth so for sustained and thermal cases, this works. BTW, my NEMA allowable is 1x allowable (its a steam turbine). This work in theory but the system is not very robust and even small dimensional changes impact the loading by a large amount. Although, I may have to run a flexibility analysis on the nozzle to get some sort of stiffness which would make the nozzle loadings much less sensitive. I would hope the actual vendor would have the option to build the nozzle / casing to satisfy x2 NEMA allowables. That may be wishful thinking but it would sure be nice.