Thanks for this position even if it's not enough clear for me.... For this valve I don't know the service condition. Are you a valves (ball valve)manufacturer?
The problem is that our software Samcef which makes finite element calculations shows us, when we put a pressure on a piece, this one...
I'm working in a valves manufacturer company
One of my customers require a ball valve 6" in 316 - 2500 lbs. Our engineer doesn't want to manufacture this valve in 316 (due to the pressure)he requires Duplex which implies a higher price. Someone could give me his point of view of the resitance...