... Lap Joint,Threaded,Orifice Flange,Swivel Flange,Spectacle Blind,Etc. Size 1/2"-72"Class 150#,300#,400#,600#, ... WELDING NECK 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, ... B16.47(SERIES A & B) : WELDING NECK FLANGE, BLIND FLANGE. Pressure Class : 75, 150, 300, 400 , 600 , 900* ASME/ANSI ...