Betts Wet-R-Dri Flanges are designed for use on cargo tanks.  The flange has a longer hub and chamfer to provide clearance with Betts Butterfly Wet-R Dri Valves.  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 or formed flanges.