Betts formed flanges are designed for use on cargo tanks.  The flange is economical and lightweight, while the formed edge offers strength and rigidity.  Bolt-hole patterns are in accordance with TTMA recommended practice.  Flange performance is dependent on proper weld procedures with an achievable MAWP of 50 psi [3.4 bar].  For sizes other than items listed below, see Betts line of solid weld flanges.