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Thanks for the information TGS4... sorry I did not look first.

BenStewart, Can you explain further what you mean by "Note these calculations are design calculations only and not stress analysis calculations."? Thanks.

Putting the lift lug on the knuckle portion of the head should be avoided. Have you considered using QTY(4) lift lugs on the shell? Orient them at 45° and 315° directly across from each other in pairs and design appropriately. This should result in standard lift lug calculations and WRC 107...

I use the following stainless hardware when designing in accordance with ASME Section VIII, Div.1: 304 SS bolting = SA-193-B8 316 SS bolting = SA-193-B8M I have never used any of the designations you have listed for pressure vessel design.

Code Calc is the way to go then.

As far as I know there is no way to do this in PV Elite. You will need open up Code Calc and put the coupling on a cylinder equivalent to the straight flange of the head. Before you go through all that trouble... are calculations on this coupling required or can it be exempt per...

Ok, that all makes sense. Thank you guys for the quick response and helpful replies. -Masters2788

I see that PV Elite Please uses 1.3 times the ambient allowable stress of the material for allowable hydrotest stress. What is this based on? Is this method mentioned in ASME Section VIII, Division 1? I cannot seem to find how they came up with this idea. Please provide a short answer if you...