... B16.48Types: Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring ... , E, F, H SIZE: 1/2" NB TO 48"NB5.EN 1092-1:2001 FLANGESSIZE:TYPE1(Plate Flanges); TYPE2(Losse Plate ... " TO 48" Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges