Hi, All

In the Tubesheet dialog, there's a blank to enter a value for Weld Leg at back of Tubesheet at Tubesheet Properties Tab.

PV Elite seems to use same calculation procedure even when I enter the value.But according to Fig. UHX11.1(d), it shall use different procedure for different Tubesheet geometry, so can anyone explain what exactly the value is going to do ?

Thanks in advance