Flange 1.Product Range :DN15-DN3000 2.pressure:0~40Mpa 3.304.347, ... .5: 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 ... Class: 300, 400, 600, 900* API 6A: WELDING NECK FLANGE, THREAD FLANGE, BLIND FLANGE.Pressure: 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, 20000Psi, 25000Psi ...