Thanks for the help. I have an application where I am constrained to use 3" sch 40 pipe. I must also maintain the nominal 3.068 ID thoughout my system. I do not see any prefabricated quick release flanges for sch 40 pipe that I can procure. Therefore I'm looking for dimensions on existing tri-clamps and flanges so I can design flanges that will work with the tri-clamps. The dimension information I can find on the clamps are restricted to the ID of the clamps. If I could find the internal widths and angles of the tri-clamps I can design a flange system to work with it.
I am not able to use B16.5 flanges at this location.
Thanks.