• Flanges Dimensional Data

    • Home
    • Flanges Dimensional Data

    Dimenisons of Class 150 Flanges


    Nominal Pipe Size NPS Outside Diameter of Flange Thickness of Flange, Min., t Thickness of Lap Joint Min., t Drilling Hub Length Thru Hub Bore Corner Radius of Bore of Lapped Flange and Pipe, R Depth of Socket, D Diameter of RF
    Diameter of Bolt Circle, W Diameter of Bolt Holes Number of Bolts Diameter of Hub, X Diameter Beginning of Chamfer, A Welding Neck, Y Threaded/ Slip-On/ Socket Welding, Y Lapped, Y Welding Min., T Welding Neck, B Slip-On/ Socket Welding, B Lapped Min., B Welding Neck/ Lapped Socket Welding [Note (2)], B
    1/2 89 9.7 11.2 60.3 15.9 4 30 21.3 14 16 46 16 22.2 22.9 15.8 3 10 34.9
    3/4 99 11.2 12.7 69.8 15.9 4 38 26.7 14 16 51 16 27.7 28.2 20.9 3 11 42.9
    1 108 12.7 14.3 79.4 15.9 4 49 33.4 16 17 54 17 34.5 34.9 26.6 3 13 50.8
    1 1/4 117 14.3 15.9 88.9 15.9 4 59 42.2 19 21 56 21 43.2 43.7 35.1 5 14 63.5
    1 1/2 127 15.9 17.5 98.4 15.9 4 65 48.3 21 22 60 22 49.5 50.0 40.9 6 16 73.0
    2 152 17.5 19.1 120.7 19.1 4 78 60.3 24 25 62 25 61.9 62.5 52.5 8 17 92.1
    2 1/2 178 20.7 22.3 139.7 19.1 4 90 73.0 27 29 68 29 74.6 75.4 62.7 8 19 104.8
    3 190 22.3 23.9 152.4 19.1 4 108 88.9 29 30 68 30 90.7 91.4 77.9 10 21 127.0
    3 1/2 216 22.3 23.9 177.8 19.1 8 122 101.6 30 32 70 32 103.4 104.1 90.1 10 - 139.7
    4 229 22.3 23.9 190.5 19.1 8 135 114.3 32 33 75 33 116.8 116.8 102.3 11 - 157.2
    5 254 22.3 23.9 215.9 22.3 8 164 141.3 35 36 87 36 143.8 144.4 128.2 11 - 185.7
    6 279 23.9 25.4 241.3 22.3 8 192 168.3 38 40 87 40 170.7 171.4 154.1 13 - 215.9
    8 343 27.0 28.6 298.2 22.3 8 246 219.1 43 44 100 44 221.5 222.2 202.7 13 - 269.9
    10 406 28.6 30.2 362.0 25.4 12 3.5 273.0 48 49 100 49 276.2 277.4 254.6 13 - 323.8
    12 483 30.2 31.8 431.8 25.4 12 365 323.8 54 56 113 56 327.0 328.2 304.8 13 - 381.0
    14 533 33.4 35.0 476.3 28.6 12 400 355.6 56 79 125 57 359.2 360.2 To be Specified by Purchaser 13 - 412.8
    16 597 35.0 36.6 539.8 28.6 16 457 406.4 62 87 125 64 410.5 411.2 13 - 469.9
    18 635 38.1 39.7 577.9 31.8 16 505 457.0 67 97 138 68 461.8 462.3 13 - 533.4
    20 698 41.1 42.9 635.0 31.8 20 559 508.0 71 103 143 73 513.1 514.4 13 - 584.2
    24 813 46.1 47.7 749.3 35.0 20 663 610.0 81 111 151 83 616.0 616.0 13 - 692.2

    Dimenisons of Class 300 Flanges


    Nominal Pipe Size NPS Outside Diameter of Flange Thickness of Flange, Min., t Drilling Hub Length Thru Hub Bore Corner Radius of Bore of Lapped Flange, R Counter-bore Flanged Min., Q Depth of Socket, D Diameter of RF
    Diameter of Bolt Circle, W Diameter of Bolt Holes Number of Bolts Diameter of Hub, X Diameter Beginning of Chamfer, A Welding Neck, Y Threaded/ Slip-On/ Socket Welding, Y Lapped, Y Threaded Length Min., T Welding Neck, B Slip-On/ Socket Welding, B Lapped Min., B Welding Neck/ Socket Welding [Note (2)], B
    1/2 95 12.7 66.7 15.9 4 38 21.3 21 22 51 16 22.2 22.9 15.8 15.8 3 23.6 10 34.9
    3/4 117 14.3 82.6 19.1 4 48 26.7 24 25 56 16 27.7 28.2 20.9 20.9 3 29.0 11 42.9
    1 124 15.9 88.9 19.1 4 54 33.4 25 27 60 18 34.5 34.9 26.6 26.6 3 35.8 13 50.8
    1 1/4 133 17.5 98.4 19.1 4 64 42.2 25 27 64 21 43.2 43.7 35.1 35.1 5 44.4 14 63.5
    1 1/2 155 19.1 114.3 22.2 4 70 48.3 29 30 67 23 49.5 50.0 40.9 40.9 6 50.3 16 73.0
    2 165 20.7 127.0 19.0 8 84 60.3 32 33 68 29 61.9 62.5 52.5 52.5 8 63.5 17 92.1
    2 1/2 190 23.9 149.2 22.3 8 100 73.0 37 38 75 32 74.6 75.4 62.7 62.7 8 76.2 19 104.8
    3 210 27.0 168.1 22.3 8 117 88.9 41 43 78 32 90.7 91.4 77.9 77.9 10 92.2 21 127.0
    3 1/2 229 28.6 184.2 22.3 8 133 101.6 43 44 79 37 103.4 104.1 90.1 90.1 10 104.9 - 139.7
    4 254 30.2 200.0 22.3 8 146 114.3 46 48 84 37 116.1 116.8 102.3 102.3 11 117.6 - 157.2
    5 279 33.4 235.0 22.3 8 178 141.3 49 51 97 43 143.8 144.4 128.2 128.2 11 144.4 - 185.7
    6 318 35.0 269.9 22.3 12 206 168.3 51 52 97 47 170.7 171.4 154.1 154.1 13 171.1 - 215.9
    8 381 39.7 330.2 25.4 12 260 219.1 60 62 110 51 221.5 222.2 202.7 202.7 13 222.2 - 269.9
    10 444 46.1 387.4 28.6 16 321 273.0 65 95 116 56 276.2 277.4 254.6 254.6 13 276.2 - 323.8
    12 521 49.3 450.8 31.8 16 375 323.8 71 102 129 61 327.0 328.2 304.8 304.8 13 328.6 - 381.0
    14 584 52.4 514.4 31.8 20 425 355.6 75 111 141 64 359.2 360.2 To be Specified by Purchaser To be Specified by Purchaser 13 360.4 - 412.8
    16 648 55.6 571.5 35.0 20 483 406.4 81 121 144 69 410.5 411.2 411.2 13 411.2 - 469.9
    18 711 58.8 628.6 35.0 24 533 457.0 87 130 157 70 461.8 462.3 462.0 13 462.0 - 533.4
    20 775 62.0 685.8 35.0 24 587 508.0 94 140 160 74 513.1 514.4 512 13 512 - 584.2
    24 914 68.3 812.8 41.3 24 702 610.0 105 152 167 83 616.0 616.0 614.4 13 614.4 - 692.2

    Dimenisons of Class 600 Flanges


    Nominal Pipe Size NPS Outside Diameter of Flange Thickness of Flange, Min., t Drilling Hub Length Thru Hub Bore Corner Radius of Bore of Lapped Flange, R Counter-bore Flanged Min., Q Depth of Socket, D Diameter of RF
    Diameter of Bolt Circle, W Diameter of Bolt Holes Number of Bolts Diameter of Hub, X Diameter Beginning of Chamfer, A Welding Neck, Y Threaded/ Slip-On/ Socket Welding, Y Lapped, Y Threaded Length Min., T Welding Neck, B Slip-On/ Socket Welding, B Lapped Min., B Welding Neck/ Socket Welding [Note (2)], B
    1/2 95 12.7 66.7 15.9 4 38 21.3 21 22 51 16 22.2 22.9 15.8 15.8 3 23.6 10 34.9
    3/4 117 14.3 82.6 19.1 4 48 26.7 24 25 56 16 27.7 28.2 20.9 20.9 3 29.0 11 42.9
    1 124 15.9 88.9 19.1 4 54 33.4 25 27 60 18 34.5 34.9 26.6 26.6 3 35.8 13 50.8
    1 1/4 133 17.5 98.4 19.1 4 64 42.2 25 27 64 21 43.2 43.7 35.1 35.1 5 44.4 14 63.5
    1 1/2 155 19.1 114.3 22.2 4 70 48.3 29 30 67 23 49.5 50.0 40.9 40.9 6 50.3 16 73.0
    2 165 20.7 127.0 19.0 8 84 60.3 32 33 68 29 61.9 62.5 52.5 52.5 8 63.5 17 92.1
    2 1/2 190 23.9 149.2 22.3 8 100 73.0 37 38 75 32 74.6 75.4 62.7 62.7 8 76.2 19 104.8
    3 210 27.0 168.1 22.3 8 117 88.9 41 43 78 32 90.7 91.4 77.9 77.9 10 92.2 21 127.0
    3 1/2 229 28.6 184.2 22.3 8 133 101.6 43 44 79 37 103.4 104.1 90.1 90.1 10 104.9 - 139.7
    4 254 30.2 200.0 22.3 8 146 114.3 46 48 84 37 116.1 116.8 102.3 102.3 11 117.6 - 157.2
    5 279 33.4 235.0 22.3 8 178 141.3 49 51 97 43 143.8 144.4 128.2 128.2 11 144.4 - 185.7
    6 318 35.0 269.9 22.3 12 206 168.3 51 52 97 47 170.7 171.4 154.1 154.1 13 171.1 - 215.9
    8 381 39.7 330.2 25.4 12 260 219.1 60 62 110 51 221.5 222.2 202.7 202.7 13 222.2 - 269.9
    10 444 46.1 387.4 28.6 16 321 273.0 65 95 116 56 276.2 277.4 254.6 254.6 13 276.2 - 323.8
    12 521 49.3 450.8 31.8 16 375 323.8 71 102 129 61 327.0 328.2 304.8 304.8 13 328.6 - 381.0
    14 584 52.4 514.4 31.8 20 425 355.6 75 111 141 64 359.2 360.2 To be Specified by Purchaser To be Specified by Purchaser 13 360.4 - 412.8
    16 648 55.6 571.5 35.0 20 483 406.4 81 121 144 69 410.5 411.2 411.2 13 411.2 - 469.9
    18 711 58.8 628.6 35.0 24 533 457.0 87 130 157 70 461.8 462.3 462.0 13 462.0 - 533.4
    20 775 62.0 685.8 35.0 24 587 508.0 94 140 160 74 513.1 514.4 512 13 512 - 584.2
    24 914 68.3 812.8 41.3 24 702 610.0 105 152 167 83 616.0 616.0 614.4 13 614.4 - 692.2

    Dimenisons of Class 900 Flanges


    Nominal Pipe Size NPS Outside Diameter of Flange Thickness of Flange, Min., t Drilling Hub Length Thru Hub Bore Corner Radius of Bore of Lapped Flange, R Counter-bore Flanged Min., Q Depth of Socket, D Diameter of RF
    Diameter of Bolt Circle, W Diameter of Bolt Holes Number of Bolts Diameter of Hub, X Diameter Beginning of Chamfer, A Welding Neck, Y Threaded/ Slip-On/ Socket Welding, Y Lapped, Y Threaded Length Min., T Welding Neck, B Slip-On/ Socket Welding, B Lapped Min., B Welding Neck/ Socket Welding [Note (2)], B
    1/2 95 12.7 66.7 15.9 4 38 21.3 21 22 51 16 22.2 22.9 15.8 15.8 3 23.6 10 34.9
    3/4 117 14.3 82.6 19.1 4 48 26.7 24 25 56 16 27.7 28.2 20.9 20.9 3 29.0 11 42.9
    1 124 15.9 88.9 19.1 4 54 33.4 25 27 60 18 34.5 34.9 26.6 26.6 3 35.8 13 50.8
    1 1/4 133 17.5 98.4 19.1 4 64 42.2 25 27 64 21 43.2 43.7 35.1 35.1 5 44.4 14 63.5
    1 1/2 155 19.1 114.3 22.2 4 70 48.3 29 30 67 23 49.5 50.0 40.9 40.9 6 50.3 16 73.0
    2 165 20.7 127.0 19.0 8 84 60.3 32 33 68 29 61.9 62.5 52.5 52.5 8 63.5 17 92.1
    2 1/2 190 23.9 149.2 22.3 8 100 73.0 37 38 75 32 74.6 75.4 62.7 62.7 8 76.2 19 104.8
    3 210 27.0 168.1 22.3 8 117 88.9 41 43 78 32 90.7 91.4 77.9 77.9 10 92.2 21 127.0
    3 1/2 229 28.6 184.2 22.3 8 133 101.6 43 44 79 37 103.4 104.1 90.1 90.1 10 104.9 - 139.7
    4 254 30.2 200.0 22.3 8 146 114.3 46 48 84 37 116.1 116.8 102.3 102.3 11 117.6 - 157.2
    5 279 33.4 235.0 22.3 8 178 141.3 49 51 97 43 143.8 144.4 128.2 128.2 11 144.4 - 185.7
    6 318 35.0 269.9 22.3 12 206 168.3 51 52 97 47 170.7 171.4 154.1 154.1 13 171.1 - 215.9
    8 381 39.7 330.2 25.4 12 260 219.1 60 62 110 51 221.5 222.2 202.7 202.7 13 222.2 - 269.9
    10 444 46.1 387.4 28.6 16 321 273.0 65 95 116 56 276.2 277.4 254.6 254.6 13 276.2 - 323.8
    12 521 49.3 450.8 31.8 16 375 323.8 71 102 129 61 327.0 328.2 304.8 304.8 13 328.6 - 381.0
    14 584 52.4 514.4 31.8 20 425 355.6 75 111 141 64 359.2 360.2 To be Specified by Purchaser To be Specified by Purchaser 13 360.4 - 412.8
    16 648 55.6 571.5 35.0 20 483 406.4 81 121 144 69 410.5 411.2 411.2 13 411.2 - 469.9
    18 711 58.8 628.6 35.0 24 533 457.0 87 130 157 70 461.8 462.3 462.0 13 462.0 - 533.4
    20 775 62.0 685.8 35.0 24 587 508.0 94 140 160 74 513.1 514.4 512 13 512 - 584.2
    24 914 68.3 812.8 41.3 24 702 610.0 105 152 167 83 616.0 616.0 614.4 13 614.4 - 692.2

    Products

    Logo
    Go Back Top