... 5)SO,WN,SW,PL.BL,TH socket weld flange for oil Size1/2"-160"TypeWeld Neck ... WN),Slip-On flange(SO),Blind flange(BL),Socket Weld flange SW), Plate flange(PL),Threaded flange ( ... TypesRF(raised face);FF(flat face);RTJ(ring type joint);RJ(ring joint face)TG(tongue and groove ... BLIND FLANGE,HIGH HUB BLIND FLANGE,,SOCKET WELD FLANGE.LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE.Pressure Class : 150 ...