Primary Flange Rating
Primary Flange Rating
(OP)
What is the Flange ANSI Primary Rating? I'm pretty sure that our flanges are rated for 3000 psi. Does this sound reasonable?
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RE: Primary Flange Rating
RE: Primary Flange Rating
If there is no rating (markings) as stated above you are in somewhat of quandry as you really can't do a legitimate calculation without the MOC. Even if you assume the lowest values of acceptable flange materials and do the required calculations they still may not be acceptable under most jurisdicitional requirements. You will have to do a PMI (Postive Material Identification) on each flange.
Before you do all this work consult with your jurisdictional authority.
RE: Primary Flange Rating
A 3000 psi rating sounds like the old API 6A ratings for well head fittings.
If you do not know already API and ASME flanges are not dimensionaly compatible.