ISO-KF flanges Material 1.4435 Di D OD L DN10 10,0 30,0 20,0 14,0 DN16 16,0 30,0 31,5 14,0 DN25 25,0 40,0 46,0 14,0 DN40 39,0 55,0 59,0 15,0 DN50 50,0 75,0 76,0 18,5 All sizes are stated in metrical measurements [mm]. Other sizes, shapes and materials are available upon request. Subject to technical modifications.