PRODUCTS :


  1. Dimension of Class 150 Flanges
  2. Dimension of Class 300 Flanges
  3. Dimension of Class 600 Flanges
  4. Dimension of Class 900 Flanges
  5. Dimension of Class 1500 Flanges
  6. Dimension of Class 2500 Flanges

Dimensions for Class 300 Flanges

Nom. Pipe Size (inches) O Q* R X No. of Holes Dia of Bolt Holes Bolt Circle Dia YY* H J Y* B R YV BB Z C T
1/2 95.3 14.2 35 38.1 4 15.7 66.5 52.3 21.3 15.7 22.4 22.4 3.0 22.4 22.9 9.7 23.6 15.7
3/4 117.3 15.7 43 47.8 4 19.1 82.6 57.2 26.7 20.8 25.4 27.7 3.0 25.4 28.2 11.2 29.0 15.7
1 124.0 17.5 51 53.8 4 19.1 88.9 62.0 33.5 26.7 26.9 34.5 3.0 26.9 35.1 12.7 35.8 17.5
1 1/4 133.4 19.1 64 63.5 4 19.1 98.6 65.0 42.2 35.1 26.9 43.2 4.8 26.9 43.7 14.2 44.5 20.6
1 1/2 155.4 20.6 73 69.9 4 22.4 114.3 68.3 48.3 40.9 30.2 49.5 6.4 30.2 50.0 15.7 50.5 22.4
2 165.1 22.4 92 84.1 8 19.1 127.0 69.9 60.5 52.6 33.3 62.0 7.9 33.3 62.5 17.5 63.5 28.4
21/2 190.5 25.4 105 100.1 8 22.4 149.4 76.2 73.2 62.7 38.1 74.7 7.9 38.1 75.4 19.1 76.2 31.8
3 209.6 28.4 127 117.3 8 22.4 168.1 79.2 88.9 78.0 42.9 90.7 9.7 42.9 91.4 20.6 92.2 31.8
31/2 228.6 30.2 140 133.4 8 22.4 184.2 81.0 101.6 90.2 44.5 103.4 9.7 44.5 104.1   104.9 36.6
4 254.0 31.8 157 146.1 8 22.4 200.2 85.9 114.3 102.4 47.8 116.1 11.2 47.8 116.8   117.6 36.6
5 279.4 35.1 186 177.8 8 22.4 235.0 98.6 141.2 128.3 50.8 143.8 11.2 50.8 144.5   144.5 42.9
6 317.5 36.6 216 206.2 12 22.4 269.7 98.6 168.4 154.2 52.3 170.7 12.7 52.3 171.5   171.5 46.0
8 381.0 41.1 270 260.4 12 25.4 330.2 111.3 219.2 202.7 62.0 221.5 12.7 62.0 222.3   222.3 50.8
10 444.5 47.8 324 320.5 16 28.4 387.4 117.3 273.1 254.5 66.5 276.4 12.7 95.3 277.4   276.4 55.6
12 520.7 50.8 381 374.7 16 31.8 450.9 130.0 323.9 304.8 73.2 327.2 12.7 101.6 328.2   328.7 60.5
14 584.2 53.8 413 425.5 20 31.8 514.4 142.7 355.6 To Be 76.2 359.2 12.7 111.3 360.2   360.4 63.5
16 647.7 57.2 470 482.6 20 35.1 571.5 146.1 406.4
To Specified by Purchaser
 82.6 410.5 12.7 120.7 411.2   411.2 68.3
18 711.2 60.5 533 533.4 24 35.1 628.7 158.8 457.2 88.9 461.8 12.7 130.0 462.3   462.0 69.9
20 774.7 63.5 584 587.2 24 35.1 685.8 162.1 508.0 95.3 513.1 12.7 139.7 514.4   512.8 73.2
24 914.4 69.9 692 701.5 24 41.1 812.8 168.1 609.6 106.4 616.0 12.7 152.4 616.0   614.4 82.6

 
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