I was trying to determine how PVELITE calculates the diameter limit for a hillside nozzle. I am following an example in ASME Section VIII Division 1 NONMANDATORY APPENDIX L, 2011a Addenda. I can not get PVELITE to match this example. Does anyone know if PVElite calculates the diameter limit a different way? If so, how do they calculate it?

Thank you for your help in advance.