... , MSS SP44 Types:Welding Neck Flange, Slip on Flange, Threaded Flange,Socket Welding Flange, Blind Flange, Orifice Flange,Ring Joint Flanges, Long Welding Neck Flange, Figure 8 Blanks Standard ... FLANGE, SLIP-ON BOSS FLANGE, BLIND FLANGE,SCREWED BOSS FLANGE, LAPPED FLANGE. PRESSURE GRADE:150 , 300 , 400 , 600 , 900, 1500 , 2500 Standard:BS 10 : WELDING NECK FLANGE, PLATE SLIP-ON FLANGE ...