Thanks for the direction, all things considered each response was very helpful. [bigsmile]
Appendix 9 was a huge help. I am now between using a 9/16" washer style flat plate with a double fillet weld at the inner pipe or using a pipe cap bored out for 4" pipe and applying a single weld there...
I'm trying to calculate the required thickness on an end cap for our vessels and I was looking for a way to do this. I've been using ASME sec VIII div I UG-34 for the design of flat heads, but the issue is that this end plate has a concentric pipe that is bored out of it.
The end plate is...
