Flange Mode: W.N,S.O,S.W,B.L,P.L,Th Cl150,CL300,CL600,CL900 DN15-DN600 ANSI B16. ... flange reducing flange, pad type flange, loose hubbed flange welding plate flange. pipe flange D .N250250250250250P.N11050201610O.D of flange510445405405395Diameter of ...