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Technical Info : Flanges


Technical Info
  • 150# DIM & Weight
  • 300# DIM & Weight
  • 600# DIM & Weight
  • 900# DIM & Weight
  • 1500# DIM & Weight
  • 2500# DIM & Weight

    Dimensions for Class 900 Flanges

    Nom. Pipe Size (inches)
    O
    Q*
    R
    X
    No. of Holes
    Dia of Bolt Holes
    Bolt Circle Dia
    YY*
    H
    J
    To Be
    Specified
    by the purchaser
    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
    -
    		 31.8 22.4 3.0 31.8 22.9 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 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 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 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 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 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 76.2 47.8  
    3 241.3 38.1 127.0 127.0 8 25.4 190.5 101.6 88.9 53.8 90.7 9.7 53.8 91.4 92.2 41.1  
    4 292.1 44.5 157.2 158.8 8 31.8 235.0 114.3 114.3 69.9 116.1 11.2 69.9 116.8 117.6 47.8  
    5 349.3 50.8 185.7 190.5 8 35.1 279.4 127.0 141.2 79.2 143.8 11.2 79.2 144.5 144.5 53.8  
    6 381.0 55.6 215.9 235.0 12 31.8 317.5 139.7 168.4 85.9 170.7 12.7 85.9 171.5 171.5 57.2  
    8 469.9 63.5 269.7 298.5 12 38.1 393.7 162.1 219.2 101.6 221.5 12.7 114.3 222.3 222.3 63.5  
    10 546.1 69.9 323.9 368.3 16 38.1 469.9 184.2 273.1 108.0 276.4 12.7 127.0 277.4 276.4 71.4  
    12 609.6 79.2 381.0 419.1 20 38.1 533.4 200.2 323.9 117.3 327.2 12.7 142.7 328.2 328.7 76.2  
    14 641.4 85.9 412.8 450.9 20 41.1 558.8 212.9 355.6 130.0 359.2 12.7 155.4 360.2 360.4 82.6  
    16 704.9 88.9 469.9 508.0 20 44.5 616.0 215.9 406.4 133.4 410.5 12.7 165.1 411.2 411.2 85.9  
    18 787.4 101.6 533.4 565.2 20 50.8 685.8 228.6 457.2 152.4 461.8 12.7 190.5 462.3 462.0 88.9  
    20 857.3 108.0 584.2 622.3 20 53.8 749.3 247.7 508.0 158.8 513.1 12.7 209.6 514.4 512.8 91.9  
    24 1041.4 139.7 692.2 749.3 20 66.5 901.7 292.1 609.6 203.2 616.0 12.7 266.7 616.0 614.4 101.6