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Lap Joint Flanges – Class 2500

Lap Joint Flanges

Class 2500

  Nominal size O C X Y B R No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
    O C X Y B r          
in. 1/2″ 5.25 1.19 1.69 1.56 0.9 0.12 4 0.88 3/4″ 3.5 7
mm.   133.4 30.2 42.9 39.6 22.9 3   22.4 19.1 88.9 3
in. 3/4″ 5.5 1.25 2 1.69 1.11 0.12 4 0.88 3/4″ 3.75 8
mm.   139.7 31.8 50.8 42.9 28.2 3   22.4 19.1 95.3 4
in. 1″ 6.25 1.38 2.25 1.88 1.38 0.12 4 1 7/8″ 4.25 11
mm.   158.8 35.1 57.2 47.8 35.1 3   25.4 22.2 108 5
in. 1 1/4″ 7.25 1.5 2.88 2.06 1.72 0.19 4 1.12 1″ 5.12 16
mm.   184.2 38.1 73.2 52.3 43.7 4.8   28.4 25.4 130 7
in. 1 1/2″ 8 1.75 3.12 2.38 1.97 0.25 4 1.25 1 1/8″ 5.75 22
mm.   203.2 44.5 79.2 60.5 50 6.4   31.8 28.6 146.1 10
in. 2″ 9.25 2 3.75 2.75 2.46 0.31 8 1.12 1″ 6.75 37
mm.   235 50.8 95.3 69.9 62.5 7.9   28.4 25.4 171.5 17
in. 2 1/2″ 10.5 2.25 4.5 3.12 2.97 0.31 8 1.25 1 1/8″ 7.75 53
mm.   266.7 57.2 114.3 79.2 75.4 7.9   31.8 28.6 196.9 24
in. 3″ 12 2.62 5.25 3.62 3.6 0.38 8 1.38 1 1/4″ 9 80
mm.   304.8 66.5 133.4 91.9 91.4 9.7   35.1 31.8 228.6 36
in. 4″ 14 3 6.5 4.25 4.6 0.44 8 1.62 1 1/2″ 10.75 120
mm.   355.6 76.2 165.1 108 116.8 11.2   41.1 38.1 273.1 54
in. 5″ 16.5 3.62 8 5.12 5.69 0.44 8 1.88 1 3/4″ 12.75 205
mm.   419.1 91.9 203.2 130 144.5 11.2   47.8 44.5 323.9 93
in. 6″ 19 4.25 9.25 6 6.75 0.5 8 2.12 2″ 14.5 315
mm.   482.6 108 235 152.4 171.5 12.7   53.8 50.8 368.3 143
in. 8″ 21.75 5 12 7 8.75 0.5 12 2.12 2″ 17.25 470
mm.   552.5 127 304.8 177.8 222.3 12.7   53.8 50.8 438.2 213
in. 10″ 26.5 6.5 14.75 9 10.92 0.5 12 2.62 2 1/2″ 21.25 900
mm.   673.1 165.1 374.7 228.6 277.4 12.7   66.5 63.5 539.8 408
in. 12″ 30 7.25 17.38 10 12.92 0.5 12 2.88 2 3/4″ 24.38 1100
mm.   762 184.2 441.5 254 328.2 12.7   73.2 69.9 619.3 499
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