ANSI Flanges

 
 

DIMENSIONS OF CLASS 900 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
15 120.6 82.5 22.2 4 22.2 38.1 31.7 60.3 31.7 22.3 22.8 34.9 9.5
20 130.2 88.9 22.2 4 25.4 44.4 34.9 69.8 35.0 27.7 28.1 42.9 11.1
25 149.2 101.6 25.4 4 28.6 52.4 41.3 73.0 41.1 34.5 35.0 50.8 12.7
32 158.7 111.1 25.4 4 28.6 63.5 41.3 73.0 41.1 43.2 43.6 63.5 14.2
40 177.8 123.8 28.6 4 31.8 49.8 44.4 82.5 44.4 49.5 50.0 73.0 15.8
50 215.9 165.1 25.4 8 38.1 104.8 57.1 101.6 57.1 62.0 62.4 92.1 17.4
65 244.5 190.5 28.6 8 41.3 123.8 63.5 104.8 63.5 74.7 75.4 104.8 19.0
80 267.0 190.5 25.4 8 38.1 127.0 53.9 101.6 53.8 90.7 91.4 127.0 -
100 292.1 234.9 31.7 8 44.4 158.7 69.8 114.3 69.8 116.0 116.8 157.1 -
125 349.2 279.4 35.0 8 50.8 190.5 79.3 127.0 79.2 143.7 114.5 185.7 -
150 381.0 317.5 31.7 12 55.6 234.9 85.8 139.7 85.8 170.6 171.4 215.9 -
200 469.9 393.7 38.1 12 63.5 298.4 101.6 162.0 114.3 221.4 222.2 269.8 -
250 546.1 469.9 38.1 16 69.8 368.3 107.9 184.1 127.0 276.3 277.3 323.8 -
300 609.6 533.4 38.1 20 79.3 419.1 117.4 200.0 142.7 327.1 328.1 381.0 -