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Description / Abstract:
This Standard covers pressure-temperature ratings, materials,
dimensions, tolerances, testing, and making of flanges (similar to
those covered in ASME B16.5) that have orifice pressure
differential connections. Coverage is limited to the following:
(a) welding neck flanges Classes 300, 600, 900, 1500,
and 2500. U.S. Customary units are presented in Mandatory Appendix
I.
(b) slip-on and threaded Class 300.
(c) welding neck flanges Class 400 in U.S. Customary
units in Mandatory Appendix II.