... FLANGE, SLIP-ON FLANGE, BLIND FLANGE, HIGH HUB BLIND FLANGE, SOCKET WELD FLANGE. LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE.Pressure Class: 150, 300, 400, 600, 900, 1500 ... FLANGES) WELDING NECK FLANGE, SLIPON FLANGE, THREADED FLANGE.Pressure Class: 300, 400, 600, 900, 1500, 2500* ASTM/ANSI ... , 400, 600, 900, 1500, 2500* MSS SP44: WELDING NECK FLANGE, BLIND FLANGE.Pressure Class: 300, 400, ...