1.1/2"- 72" 2.Welding Neck,Slip On,Lap Joint,Blind.Threaded,Swivel,Orifice 3.ANSI.DIN.BS.MSS.API6A. ... /2"-72"TypeWeld Neck, Slip-On, Blind, Socket Weld, Lap Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle Blind,Etc.StandardANSI, ASME ... BLIND FLANGE, SOCKET WELD FLANGE.LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE.Pressure Class : 150, 300, 400 , 600 , 900, 1500 , 2500 ...