... FLANGE, SOCKET WELD FLANGE. LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE. Pressure Class: 150, 300, 400, 600, 900, 1500, 2500 ASME/ANSI B16.47(SERIES ... A & B): WELDING NECK FLANGE, BLIND FLANGE. Pressure Class: 75, 150, 300, 400, 600 ...