Hi all,

I have small query in flange leak as per asme sec Viii Div 2

For RTJ Flanges,Flange Face OD means whether we need to take groove dia or we need to take raised face OD only?
For Ex. 6" 150# sch 40 RTJ
what will be flange face OD either 193.68 mm or 219 mm.

Regarding uncompressed gasket thickness for rtj flange,shall we take height of a ring ?

But in sec Viii ,formulas are independent of gasket thickness.But in Caesar why we need to specify it?