... Flange,Spectacle Blind,Etc. Size 1/2"-72"Class 150#,300#,400#,600#,900#,1500#,2500# Specification Carbon Steel ASTM A105/A694 ... NECK FLANGE, SLIP-ON FLANGE, BLIND FLANGE,HIGH HUB BLIND FLANGE, SOCKET WELD FLANGE.LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE. ... , 600 , 900* API 6A : WELDING NECK FLANGE, THREAD FLANGE,BLIND FLANGE.Pressure : 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, ...