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Threaded Flanges – Class 2500

Threaded Flanges

Class 2500

  Nominal size O C R X Y T Q No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight pounds Kg
    O C R X Y T Q          
in. 1/2″ 5.25 1.19 1.38 1.69 1.56 1.12 0.93 4 0.88 3/4″ 3.5 7
mm.   133.4 30.2 35.1 42.9 39.6 28.4 23.6   22.4 19.1 88.9 3
in. 3/4″ 5.5 1.25 1.69 2 1.69 1.25 1.14 4 0.88 3/4″ 3.75 8
mm.   139.7 31.8 42.9 50.8 42.9 31.8 29   22.4 19.1 95.3 4
in. 1″ 6.25 1.38 2 2.25 1.88 1.38 1.41 4 1 7/8″ 4.25 11
mm.   158.8 35.1 50.8 57.2 47.8 35.1 35.8   25.4 22.2 108 5
in. 1 1/4″ 7.25 1.5 2.5 2.88 2.06 1.5 1.75 4 1.12 1″ 5.12 16
mm.   184.2 38.1 63.5 73.2 52.3 38.1 44.5   28.4 25.4 130 7
in. 1 1/2″ 8 1.75 2.88 3.12 2.38 1.75 1.99 4 1.25 1 1/8″ 5.75 22
mm.   203.2 44.5 73.2 79.2 60.5 44.5 50.5   31.8 28.6 146.1 10
in. 2″ 9.25 2 3.62 3.75 2.75 2 2.5 8 1.12 1″ 6.75 38
mm.   235 50.8 91.9 95.3 69.9 50.8 63.5   28.4 25.4 171.5 17
in. 2 1/2″ 10.5 2.25 4.12 4.5 3.12 2.25 3 8 1.25 1 1/8″ 7.75 55
mm.   266.7 57.2 104.6 114.3 79.2 57.2 76.2   31.8 28.6 196.9 25
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