Flange short form

　　The steel flanges have different description. The clients usually only write a short form so we should clear what type of flanges it is. The following is commonly used flanges and abbreviation.

　　Weld Neck Flange (WN), Long Welding Neck Flange (LWN), Lap Joint Flange (LJ), Blind Flange /Blank Flange (BL), Slip On Flange (SO), Thread Flange (THR), Socket Weld Flange (SW), Spectacle Blind Flange (Figue 8)