... B16.48Types: Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring ... Flanges, Screwed Boss Flanges, Slip on Boss Flanges, Blind Flanges TYPES: Table: D, E, F, H SIZE: 1/2" NB TO ... " TO 48" Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges