... NECK FLANGE, SLIP-ON FLANGE, BLIND FLANGE, HIGH HUB BLIND FLANGE, SOCKET WELD FLANGE. LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE.Pressure ... /ANSI B16.36: (ORIFICE FLANGES) WELDING NECK FLANGE, SLIPON FLANGE, THREADED FLANGE.Pressure Class: 300, 400, 600, 900, ... 400, 600, 900* API 6A: WELDING NECK FLANGE, THREAD FLANGE, BLIND FLANGE.Pressure: 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, ...