... Product Description1.Type Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint, Threaded, Orifice Flange, Swivel Flange, Spectacle Blind, etc. 2.Size ... FLANGE, SOCKET WELD FLANGE. LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE. Pressure Class: 150, 300, 400, 600, 900, 1500, 2500 ...