ANSI Flanges

 
 

DIMENSIONS OF CLASS 2500 FLANGES AS PER ANSI B 16.5

 

NOM INAL PIPE SIZE FLANGE DIA Dia of bolt circle Dia of bolt holes No of Holes Thk of Flange Dia of Hub Length through Hub Dia of Bore Dia of R/F Depth of socket
S/O&S/W W/N L/J S/O&S/W L/J
O A D C E Y Y Y B B R F
15 133.3 88.9 22.2 4 30.2 42.9 39.7 73.0 39.7 22.3 22.3 34.9 __
20 139.7 95.2 22.2 4 31.7 50.8 42.9 79.4 42.9 27.7 27.7 42.9 __
25 158.7 107.9 25.4 4 34.9 57.1 47.7 88.9 47.7 34.5 34.5 50.8 __
32 184.1 130.2 28.6 4 38.1 73.0 52.4 95.2 52.4 43.2 43.2 63.5 __
40 203.2 146.0 31.7 4 44.4 79.4 60.3 111.1 60.3 49.5 49.5 73.0 __
50 234.9 171.4 28.6 8 50.8 95.2 69.8 127.0 69.8 62.4 62.0 92.1 __
65 266.7 196.8 31.7 8 57.1 114.3 79.4 142.9 79.4 74.7 74.7 104.8 __
80 304.8 228.6 34.9 8 66.7 133.3 92.1 168.3 92.1 90.7 90.7 127.0 __
100 355.6 273.0 41.3 8 76.2 165.1 107.9 190.5 107.9 116.1 116.1 157.2 __
125 419.1 323.8 47.6 8 92.1 203.2 130.0 228.6 130.0 143.8 143.8 185.7 __
150 482.6 368.3 54.0 8 107.9 234.9 152.4 273.0 152.4 170.7 170.7 215.9 __
200 552.4 438.1 54.0 12 127.0 304.8 177.8 317.5 177.8 221.5 221.5 269.9 __
250 673.1 539.7 66.7 12 165.1 374.6 228.6 419.1 228.6 276.3 276.3 323.8 __
300 762.0 619.1 73.0 12 184.1 441.3 354.0 463.5 254.0 327.1 327.1 381.0 __