I am trying to find the maximum working pressure for a R57 ring gasket. I am receiving conflicting information with some saying it is 3000psi and others saying 5000psi.
The standard API flange slide rules don't really apply to me as this is an OEC and otherwise a non-standard api flange but...
blckwtr,
I believe what you are looking for is the length of thread engagement in a studded flange connection?
AWHEM (ASSOCIATION OF WELL HEAD EQUIPMENT MANUFACTURERS) has a good TR for specs on studs. It's titled "Specification For Stud Bolts and Tap End Studs", doc# TR9501. Can be found...