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Technical Info : Flanges


Technical Info

Dimensions for Class 1500 Flanges

Nom. Pipe Size(inches) O Q* R X No. of Holes Dia ofBoltHoles BoltCircleDia. YY* H J Y* B R YV BB Z C T
1/2 120.7 22.4 35.1 38.1 4 22.4 82.6 60.5 21.3 To Be Specified by purchaser 31.8 22.4 3.0 31.8 22.9 9.7 23.6 22.4
3/4 130.0 25.4 42.9 44.5 4 22.4 88.9 69.9 26.7 35.1 27.7 3.0 35.1 28.2 11.2 29.0 25.4
1 149.4 28.4 50.8 52.3 4 25.4 101.6 73.2 33.5 41.1 34.5 3.0 41.1 35.1 12.7 35.8 28.4
1 1/4 158.8 28.4 63.5 63.5 4 25.4 111.3 73.2 42.2 41.1 43.2 4.8 41.1 43.7 14.2 44.5 30.2
1 1/2 177.8 31.8 73.2 69.9 4 28.4 124.0 82.6 48.3 44.5 49.5 6.4 44.5 50.0 15.7 50.5 31.8
2 215.9 38.1 91.9 104.6 8 25.4 165.1 101.6 60.5 57.2 62.0 7.9 57.2 62.5 17.5 63.5 38.1
21/2 244.3 41.1 104.6 124.0 8 28.4 190.5 104.6 73.2 63.5 74.7 7.9 63.5 75.4 19.1 76.2 47.8
3 266.7 47.8 127.0 133.4 8 31.8 203.2 117.3 88.9 73.2   9.7 73.2 91.4   92.2 50.8
4 311.2 53.8 157.2 162.1 8 35.1 241.3 124.0 114.3 90.4 11.2 90.4 116.8 117.6 57.2
5 374.7 73.2 185.7 196.9 8 41.1 292.1 155.4 141.2 104.6 11.2 104.6 144.5 144.5 63.5
6 393.7 82.6 215.9 228.6 12 38.1 317.5 171.5 168.4 119.1 12.7 119.1 171.5 171.5 69.9
8 482.6 91.9 269.7 292.1 12 44.5 393.7 212.9 219.2 142.7 12.7 142.7 222.3 222.3 76.2
10 584.2 108.0 323.9 368.3 12 50.8 482.6 254.0 273.1 158.8 12.7 177.8 277.4 276.4 84.1
12 673.1 124.0 381.0 450.9 16 53.8 571.5 282.4 323.9 180.8 12.7 218.9 328.2 328.7 91.9
14 749.3 133.4 412.8 495.3 16 60.5 635.0 298.5 355.6   12.7 241.3 360.2    
16 825.5 146.1 469.9 552.5 16 66.5 704.9 311.2 406.4 12.7 260.4 411.2
18 914.4 162.1 533.4 596.9 16 73.2 774.7 304.8 457.2 12.7 276.4 462.3
20 984.3 177.8 584.2 641.4 16 79.2 831.9 355.6 508.0 12.7 292.1 514.4
24 1168.4 203.2 692.2 762.0 16 91.9 990.6 406.4 609.6 12.7 330.2 616.0