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Slip-On Flanges – Class 400

Nom-inal size O C R X Y B No. of holes Diam. of holes Diam. of bolts Diam. of bolt circle Approx. weight lbs. Kg
in. 3/4″
mm.
in. 1″
mm.
in. 1 1/4″
mm.
in. 1 1/2″
mm.
in. 2″
mm.
in. 2 1/2″
mm.
in. 3″
mm.
in. 3 1/2″
mm.
in. 4″ 10 1.38 6.19 5.75 2 4.57 8 1   7.88 26
mm. 254 35.1 157.2 146.1 50.8 116.1 25.4 22.2 200.2 12
in. 5″ 11 1.5 7.31 7 2.12 5.66 8 1   9.25 31
mm. 279.4 38.1 185.7 177.8 53.8 143.8 25.4 22.2 235 14
in. 6″ 12.5 1.62 8.5 8.12 2.25 6.72 12 1   10.62 44
mm. 317.5 41.1 215.9 206.2 57.2 170.7 25.4 22.2 269.7 20
in. 8″ 15 1.88 10.62 10.25 2.69 8.72 12 1.12 1 13 67
mm. 381 47.8 269.7 260.4 68.3 221.5 28.4 25.4 330.2 30
in. 10″ 17.5 2.12 12.75 12.62 2.88 10.88 16 1.25 1 1/8 15.25 91
mm. 444.5 53.8 323.9 320.5 73.2 276.4 31.8 28.6 387.4 41
in. 12″ 20.5 2.25 15 14.75 3.12 12.88 16 1.38 1 1/4 17.75 130
mm. 520.7 57.2 381 374.7 79.2 327.2 35.1 31.8 450.9 59
in. 14″ 23 2.38 16.25 16.75 3.31 14.14 20 1.38 1 1/4 20.25 180
mm. 584.2 60.5 412.8 425.5 84.1 359.2 35.1 31.8 514.4 82
in. 16″ 25.5 2.5 18.5 19 3.69 16.16 20 1.5 1 3/8 22.5 235
mm. 647.7 63.5 469.9 482.6 93.7 410.5 38.1 34.9 571.5 107
in. 18″ 28 2.62 21 21 3.88 18.18 24 1.5 1 3/8 24.75 285
mm. 711.2 66.5 533.4 533.4 98.6 461.8 38.1 34.9 628.7 129
in. 20″ 30.5 2.75 23 23.12 4 20.2 24 1.62 1 1/2 27 345
mm. 774.7 69.9 584.2 587.2 101.6 513.1 41.1 38.1 685.8 156
in. 24″ 36 3 27.25 27.62 4.5 24.25 24 1.88 1 3/4 32 510
mm. 914.4 76.2 692.2 701.5 114.3 616 47.8 44.5 812.8 231

 

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