... AWWA C207 flangeOther Type: Slip-On, Welding Neck, Blind, Socket Welding, Lap Joint,Threaded and Plate etc.Pressure Ratings: Class ... 16K, and 20K.Standdard: ANSI,DIN,EN,BS,JIS,AWWA,BS and GB ectMaterial: Stainless steel, Carbon steel ... ,A182 F304/F304L,F316/F316L 5 ANSI B16.47 B(API605) 26"--60" 75--900LBS BL,WN A105 ... A350LF2,A182 F304/F304L,F316/F316L 7 AWWA C207 4"--144" Class B,D,E,F T/1 PL A105,A181 ...