Technical Information




    » Flanges Dimensions

    Flanges & Fittings Types & Specifications :

     

    Size Range

    FLANGES ½" to 36" (10 mm to 900 mm)

    ASME/ANSI B16.5

    Welding Neck Flange, Slipon Flange, Blind Flange, High Hub Blind Flange, High Hub Blind Flange, Socket weld Flange, Lap Joint Flange. Threaded Flange , Ring Type Joint Flange

    Pressure Class

    150, 300, 400, 600, 900 ,1500, 2500

    ASME/ANSI B 16.47

    WELDING NECK FLANGE, Blind Flange (series A & B )

    Pressure Class

    75, 150, 300, 400, 600, 900

    ASME/ANSI B 16.36

    (ORIFICE FLANGES) WELDING NECK FLANGE, SLIPON FLANGE, THREADED FLANGE

    Pressure Class

    300, 400, 600, 900, 1500, 2500

    JIS B220/B2291

    Welding Neck Flange, Slipon Plate Flange, Shut off Flange, Square Flange

    Pressure Class

    5k, 10k, 16k, 20k, 30k

    BS 4504 SEC3.1

    Welding Neck Flange (111/134), Hubbed Slipon Flange (112), Hubbed Threaded Flange (113), Lapped Pipe End Flange (133), Plate Flangge (101), Loose Plate Flange (102), Loose Plate with Weld-neck Flange (104), Blank Flange (105)

    Pressure Class

    Pn2.5 To Pn 40

    BS 4504 (PART-1)

    Welding Neck Flange, Hubbed Slip-on-Hubbed Threaded, Plate Flange, Loose Plate with Weld on Plate Collar, Blank Flange

    Pressure Class

    Pn2.5 to Pn 400

    Bs1560

    Welding Neck Flange, Socket Welding Flange, Slip-on Boss Flange, Blind Flange, Screwed Boss Flange, Lapped Flange

    Pressure Class

    150, 300, 400, 600, 900, 1500, 2500

    BS 10

    Welding Neck Flange, Plate Slip-on Flange, Screwed Boss Flange, Slipon Boss Flage, Blind Flange
    Table : D, E, F, H

    DIN Flanges

    DIN2527, DIN2566, DIN2573, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2637, DIN2638, DIN2673

    Pressure Class

    PN 6 to PN 320

    AFNOR NFE 29-203

    Plate Flange (01), loose Plate Flange (02,03,04), Blind Flange (05) Welding Neckflange (11), Hubbed Slip on Flange (12), Screwed Flange (13), Hubbed Socket Welding Flange (14) , Loose Hubbed Flange (15) Integral Flange (21)

    Pressure Class

    Iso- Pn 2.5 To Pn 420

    Pr EN 1092-1 Flanges

    Plate Flange (01), Loose Plate Flange (02,04), Blind Flange (05) Welding Neck Flange (11), Hubbed Slip on Flange (12), Screwed Flange (13), Integral Flange (21)

    Pressure Class

    Pn2.5 To Pn100

    ASME/ANSI B16.9/MSS SP-4

    Stub End

    Type

    A,B,C

    Flanges Dimensions


    150 LB. FLANGES

     

    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum
    thickness
    of flange    		 Overall         Length Bolt 
    Circle    		 No. and
    Size of
    Holes    		 O.D. of
    raised
    face
    Welding
    neck    		 Slip-on
    & socket
    welding    		 Lap Joint
    O Q Y Diam. No. dia. R
    1/2 89 11.2 47.6 15.9 15.9 60.5 4 15 35
    3/4 117 15.9 57.2 25.4 25.4 82.5 4 15 43
    1 108 14.3 55.6 17.5 17.5 79.5 4 15 51
    1.1/4 117 15.9 57.2 20.6 20.6 89.0 4 15 64
    1.1/2 127 17.5 61.9 22.2 22.2 98.5 4 15 73
    2 152 19.1 63.5 25.4 25.4 120.5 4 19 92
    2.1/2 178 22.3 69.8 28.6 28.6 139.5 4 19 105
    3 190 23.9 69.8 30.2 30.2 152.5 4 19 127
    3.1/2 216 23.9 71.4 31.8 31.8 178.0 8 19 140
    4 229 23.9 86.2 33.3 33.3 190.5 8 19 157
    5 254 23.9 88.9 36.5 36.5 216.0 8 22 186
    6 279 25.4 88.9 39.7 39.7 241.5 8 22 216
    8 343 28.6 101.6 44.4 44.4 298.5 8 22 270
    10 406 30.2 101.6 49.2 49.2 362.0 12 25 324
    12 483 31.8 114.3 55.6 55.6 432.0 12 25 381
    14 533 35.0 127.0 57.2 79.4 476.0 12 29 413
    16 597 36.6 127.0 63.5 87.3 539.5 16 29 470
    18 635 39.7 139.7 68.3 96.8 578.0 16 32 533
    20 698 42.9 144.5 73.0 103.2 635.0 20 32 584
    24 813 47.7 152.4 82.6 111.1 749.5 20 35 692


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    300 LB. FLANGES
    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum
    thickness
    of flange    		 Overall Length Bolt 
    Circle    		 No. and 
    Size of
    Holes    		 O.D. of
    raised
    face
    Welding 
    neck    		 Slip-on
    & socket
    welding    		 Lap Joint
    O Q Y Diam. No. dia. R
    1/2 95 14.3 52.4 22.2 22.2 666.5 4 15 35
    3/4 117 15.9 57.2 25.4 25.4 82.4 4 19 43
    1 124 17.5 61.9 27.0 27.0 89.0 4 19 51
    1-1/4 133 19.1 65.1 27.0 27.0 98.5 4 19 64
    1-1/2 156 20.7 68.3 30.2 30.2 114.5 4 22 73
    2 165 22.3 69.8 33.3 33.3 127.0 8 19 92
    2-1/2 190 25.4 76.2 38.1 38.1 149.0 8 22 105
    3 210 28.6 79.4 42.9 42.9 168.0 8 22 127
    4 254 318 85.7 47.6 47.6 200.0 8 22 157
    5 279 35.0 98.4 50.8 50.8 235.0 8 22 186
    6 313 36.6 98.4 52.4 52.4 270.0 12 22 216
    6 381 413 111.1 61.9 91.9 330.0 12 25 270
    10 444 47.7 117.5 66.7 95.3 387.5 16 29 324
    12 521 50.8 130.2 73.0 101.6 451.0 16 32 381
    14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
    16 648 57.2 146.0 82.6 120.7 571.5 20 35 470
    18 711 60.4 158.8 88.9 130.2 628.5 24 35 533
    20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
    24 914 69.9 168.3 106.4 152.4 843.0 24 41 692

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    600 LB. FLANGES
    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum
    thickness of
    flange    		 Overall Length Bolt Circle No. and
    Size of
    Holes    		 O.D. of
    raised
    face
    Welding neck Slip-on 
    & socket
    welding    		 Lap Joint
    		O Q Y Diam. No. dia. R
    1/2 95 14.3 52.4 22.2 22.2 66.5 4 15 35
    3/4 117 15.9 57.2 25.4 25.4 82.5 4 19 43
    1 124 17.5 61.9 27.0 27.0 89.0 4 19 51
    1-1/4 133 20.7 66.7 28.6 28.6 98.5 4 19 64
    1-1/2 156 22.3 69.8 31.8 31.8 114.5 4 22 73
    2 165 25.4 73.0 36.5 36.5 127.0 8 19 92
    2-1/2 190 28.6 79.4 41.3 41.3 149.0 8 22 105
    3 210 31.8 82.6 46.0 46.0 168.0 8 22 127
    3-1/2 229 35.0 85.7 49.2 49.2 184.0 8 25 140
    4 273 38.1 101.6 54.0 54.0 216.0 8 25 157
    5 330 44.5 114.3 60.3 60.3 266.5 8 29 186
    6 356 47.7 117.5 66.7 66.7 292.0 12 29 216
    8 419 55.6 133.4 76.2 76.2 349.0 12 32 270
    10 508 63.5 152.4 85.7 115.1 432.0 16 85 324
    12 559 66.7 155.6 92.1 111.1 489.0 20 35 381
    14 603 69.9 165.1 93.7 117.5 527.0 20 38 413
    16 686 76.2 177.8 106.4 127.0 603.0 20 41 470
    18 743 82.6 184.2 117.6 139.7 654.0 20 45 533
    20 813 88.9 190.5 127.0 165.1 724.0 24 45 584
    24 940 101.6 203.2 139.7 184.2 838.0 24 51 692

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    900 LB. FLANGES
    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum
    thickness of
    flange    		 Overall Length Bolt
    Circle    		 No. and 
    Size of 
    Holes    		 O.D. of
    raised
    face
    Welding neck Slip-on
    & 
    socket 
    welding    		 Lap Joint
    		O Q Y Diam. No. dia. R
    1/2 121 22.3 60.3 31.8 31.8 82.5 4 22 35
    3/4 130 25.4 69.8 34.9 34.9 89.0 4 22 43
    1 149 28.6 78.0 41.3 41.3 101.5 4 25 51
    1-1/4 159 28.6 78.0 41.3 41.3 111.0 4 25 64
    1-1/2 178 31.8 82.6 44.4 44.4 124.0 4 29 78
    2 216 38.1 101.6 57.2 57.2 165.0 8 25 92
    2-1/2 244 41.3 104.8 63.5 63.5 190.5 8 29 105
    8 241 38.1 101.6 54.0 54.0 190.5 8 25 127
    3-1/2
    4 292 44.5 114.3 69.8 69.8 235.0 8 32 157
    5 349 50.8 127.0 79.4 79.4 279.5 8 35 186
    6 381 55.6 189.7 85.7 85.7 317.5 12 32 216
    8 470 68.5 161.9 101.8 114.3 393.5 12 38 270
    10 546 69.9 184.2 108.0 127.0 470.0 16 38 324
    12 610 79.4 200.0 117.5 142.9 533.5 20 38 381
    14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
    16 711 60.4 158.8 88.9 130.2 628.5 24 35 533
    20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
    24 914 69.9 168.3 106.4 152.4 843.0 24 41 692

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    1500 LB. FLANGES

    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum 
    thickness
    of flange    		 Overall          Length Bolt 
    Circle    		 No. and
    Size of 
    Holes    		 O.D. 
    of raised
    face
    Welding
    neck    		 Slip-on
    & 
    socket 
    welding    		 Lap 
    Joint
    		O Q Y Diam. No. dia. R
    1/2 12.1 22.3 60.3 31.8 31.8 82.5 4 22 35
    3/4 130 25.4 69.8 34.9 34.9 89.0 4 22 43
    1 149 28.6 73.0 41.3 41.3 101.5 4 25 51
    1-1/4 159 28.6 73.0 41.3 41.3 111.0 4 25 64
    1-1/2 178 31.8 82.6 44.4 44.4 124.0 4 29 73
    2 216 38.1 101.6 57.2 57.2 165.0 8 25 92
    2-1/2 244 41.3 104.8 63.5 63.5 190.5 8 29 105
    3 267 47.7 117.5 73.0 73.0 203.0 8 32 127
    3-1/2
    4 311 54.0 123.8 90.5 90.5 241.5 8 35 157
    5 375 73.1 155.5 104.8 104.8 292.0 8 41 186
    6 394 82.6 171.4 119.1 119.1 317.5 12 38 216
    8 483 92.1 212.7 142.9 142.9 393.5 12 45 270
    10 584 108.0 254.0 158.8 177.8 482.5 12 51 324
    12 673 123.9 282.9 181.0 219.1 571.5 16 54 381
    14 749 133.4 298.4 ----- 241.3 635.0 16 60 413
    16 826 146.1 311.2 ----- 260.4 705.0 16 51 470
    18 914 162.0 327.0 ------ 276.2 474.5 16 73 538
    20 984 117.8 355.4 ----- 292.1 832.0 16 80 584
    24 1168 203.2 406.4 ----- 330.2 990.5 16 92 692

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    2500 LB. FLANGES

    Normal
    pipe
    size    		 Outside
    dia. of
    flange    		 Minimum
    thickness
    of flange    		 Overall          Length Bolt
    Circle    		 No. and
    Size of
    Holes    		 O.D. of
    raised
    face
    Welding
    neck    		 Slip-on
    &
    socket
    welding    		 Lap
    Joint
    		O Q Y Diam. No. dia. R
    1/2 133.4 30.2 73.0 39.7 39.7 88.9 4 22 34.9
    3/4 139.7 31.8 79.4 42.9 42.9 95.3 4 22 42.9
    1 158.8 34.9 88.9 47.6 47.6 108.0 4 25 50.8
    1-1/4 184.2 38.1 95.3 52.4 52.4 130.2 4 29 63.5
    1-1/2 203.2 44.5 111.1 60.3 60.3 146.0 4 32 73.0
    2 235.0 50.8 127.0 69.9 69.9 171.5 8 29 92.1
    2-1/2 266.7 57.2 142.9 79.4 79.4 196.9 8 32 104.8
    3 304.8 66.7 168.3 92.1 92.1 228.6 8 35 127.0
    3-1/2
    4 355.6 76.2 190.5 108.0 108.0 273.0 8 41 157.2
    5 419.1 92.1 228.6 130.2 130.2 323.9 8 48 185.7
    6 482.6 108.0 273.1 152.4 152.4 268.3 8 54 215.9
    8 552.5 127.0 317.5 177.8 177.8 438.2 12 54 269.9
    10 673.1 165.1 419.1 228.6 228.6 539.8 12 67 323.9
    12 762.0 184.2 463.6 254.0 254.0 619.1 12 73 381.03
    14 --- --- --- --- --- --- -- --- ---
    16 --- --- --- --- --- --- -- --- ---
    18 --- --- --- --- --- --- -- --- --
    20 --- --- --- --- --- --- -- --- --
    24 --- --- --- --- --- --- -- --- --

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    WELDING NECK FLANGE BORES

    Nom.
    pipe
    Size    		 Outside
    Diam    		 Light
    Wall
    6    		 Sched.
    20    		 Sched.
    30    		 Std.
    Wall    		 Sched.
    40    		 Sched.
    60    		 Extra
    Strong    		 Sched.
    80    		 Sched.
    100    		 Sched.
    120    		 Sched.
    140    		 Sched.
    160    		 Double
    Extra
    Strong
    1/2
    3/4
    1    		 0.840
    1.050
    1.315    		 .674
    .884
    1.097    		 .....
    .....
    ....    		 .....
    .....
    ....    		 0.622
    0.824
    1.049    		 0.622
    0.824
    1.049    		 .....
    .....
    ....    		 0.546
    0.742
    0.957    		 0.546
    0.742
    0.957    		 .....
    .....
    ....    		 .....
    .....
    ....    		 .....
    .....
    ....    		 0.464
    0.612
    0.815    		 0.252
    0.434
    0.599
    1-1/4
    1-1/2
    2    		 1.660
    1.900
    2.375    		 1.442
    1.682
    2.157    		 .....
    .....
    ....    		 .....
    .....
    ....    		 1.380
    1.610
    2.067    		 1.380
    1.610
    2.067    		 .....
    .....
    ....    		 1.278
    1.500
    1.939    		 1.278
    1.500
    1.939    		 .....
    .....
    ....    		 .....
    .....
    ....    		 .....
    .....
    ....    		 1.160
    1.338
    1.687    		 0.896
    1.100
    1.503
    2-1/2
    3
    3-1/2    		 2.875
    3.500
    4.000    		 2.635
    3.260
    3.760    		 .....
    .....
    ....    		 .....
    .....
    ....    		 2.469
    3.068
    3.548    		 2.469
    3.068
    3.548    		 .....
    .....
    ....    		 2.323
    2.900
    3.364    		 2.323
    2.900
    3.364    		 .....
    .....
    ....    		 ....
    ....
    ....    		 .....
    .....
    ....    		 2.125
    2.624
    ....    		 1.771
    2.300
    2.728
    4
    5
    6
    8    		 4.500
    5.563
    6.625
    8.625    		 4.260
    5.295
    6.357
    8.329    		 ...
    ...
    ...
    8.125    		 ...
    ...
    ...
    8.071    		 4.026
    5.047
    6.065
    7.981    		 4.026
    5.047
    6.065
    7.981    		 ...
    ....
    ...
    7.813    		 3.826
    4.813
    5.761
    7.625    		 3.826
    4.813
    5.761
    7.625    		 ...
    ...
    ...
    7.437    		 3.624
    4.563
    5.501
    7.187    		 ...
    ...
    ...
    7.001    		 3.438
    4.313
    5.187
    6.813    		 3.152
    4.063
    4.897
    6.875
    10
    12
    14
    16    		 10.750
    12.750
    14.000
    16.000    		 10.420
    12.390
    13.500
    15.500    		 10.250
    12.250
    13.376
    15.376    		 10.136
    12.090
    13.250
    15.250    		 10.020
    12.000
    13.250
    15.250    		 10.020
    11.938
    13.124
    15.000    		 9.750
    11.626
    12.812
    14.688    		 9.750
    11.750
    13.000
    15.000    		 9.562
    11.374
    12.500
    14.312    		 9.312
    11.062
    12.124
    13.938    		 0.062
    10.750
    11.814
    13.564    		 8.750
    10.500
    11.500
    13.124    		 8.500
    10.500
    11.500
    13.124    		 8.750
    10.750
    ....
    ....
    18
    20
    24    		 18.000
    20.000
    24.000    		 17.500
    19.500
    23.500    		 17.376
    19.250
    23.250    		 17.124
    19.000
    22.876    		 17.250
    19.250
    23.250    		 16.876
    18.812
    22.624    		 16.500
    18.376
    22.062    		 17.000
    19.000
    23.000    		 16.124
    17.938
    21.562    		 15.688
    17.438
    20.938    		 15.250
    17.000
    20.376    		 14.876
    16.500
    19.876    		 14.438
    16.062
    19.312    		 ....
    ....
    ....
    30
    36
    42    		 30.000
    36.000
    42.000    		 29.376
    35.376
    ......    		 29.000
    35.000    		 28.750
    34.750    		 29.250
    35.250
    41.250    		 ....
    34.500
    ....    		 ....
    .....
    ....    		 29.000
    35.000
    41.000    		 ....
    .....
    ....    		 ....
    .....
    ....    		 ....
    .....
    ....    		 ....
    .....
    ....    		 ....
    .....
    ....    		 ....
    .....
    ....

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    DIN 2527

    NW D Flange k Raised Face Number Bolts Bolts Dia. of 
    Bolt
    Hole    		 Weight of
    One Flange
    (7.85 kg/dm3)
    b d4 f d2 Type-B
    kg    		 Type-C
    kg
    ND-6 10
    15
    20    		 75
    80
    90    		 12
    12
    14    		 50
    55
    65    		 35
    40
    50    		 2
    2
    2    		 4
    4
    4    		 M10
    M10
    M10    		 -
    -
    -    		 11.5
    11.5
    11.5    		 0.38
    0.44
    0.65    		 0.33
    0.38
    0.59
    25
    32
    40    		 100
    120
    130    		 14
    14
    14    		 75
    90
    100    		 60
    70
    80    		 2
    2
    3    		 4
    4
    4    		 M10
    M12
    M12    		 -
    (1/2")
    (1/2")    		 11.5
    14.0
    14.0    		 0.82
    1.17
    1.39    		 0.74
    1.07
    1.21
    50
    65
    80    		 140
    160
    190    		 14
    14
    16    		 110
    130
    150    		 90
    110
    128    		 3
    3
    3    		 4
    4
    4    		 M12
    M12
    M16    		 (1/2")
    (1/2")
    (3/8")    		 14
    14
    18    		 1.62
    2.44
    3.43    		 1.43
    2.21
    3.09
    100
    125
    150    		 210
    240
    265    		 16
    18
    18    		 170
    200
    225    		 148
    178
    202    		 3
    3
    3    		 4
    8
    8    		 M16
    M16
    M16    		 (5/8")
    (5/8")
    (5/8")    		 18
    18
    18    		 4.76
    6.11
    7.51    		 4.37
    5.68
    7.02
    (175)
    200
    250    		 295
    320
    375    		 20
    20
    22    		 255
    280
    335    		 232
    258
    312    		 3
    3
    3    		 8
    8
    12    		 M16
    M16
    M16    		 (5/8")
    (5/8")
    (5/8")    		 18
    18
    18    		 10.4
    12.3
    18.3    		 9.85
    11.7
    17.6
    300
    350
    400
    500    		 440
    490
    540
    645    		 22
    22
    22
    24    		 395
    445
    495
    600    		 365
    415
    465
    570    		 4
    4
    4
    4    		 12
    12
    16
    20    		 M20
    M20
    M20
    M20    		 (3/4")
    (3/4")
    (3/4")
    (3/4")    		 23
    23
    23
    23    		 25.3
    31.6
    38.4
    60.4    		 24.0
    30.1
    36.4
    58.1
    ND-10
    (Note from 10 mm to 175 mm see ND-16    		 200
    250
    300    		 340
    395
    445    		 24
    26
    26    		 295
    350
    400    		 268
    320
    370    		 3
    3
    4    		 8
    12
    12    		 M20
    M20
    M20    		 (3/4")
    (3/4")
    (3/4")    		 23
    23
    23    		 16.5
    24.0
    30.9    		 15.6
    23.1
    29.4
    350
    400
    500    		 505
    565
    670    		 26
    26
    28    		 460
    515
    620    		 430
    482
    585    		 4
    4
    4    		 16
    16
    20    		 M20
    M24
    M24    		 (3/4")
    (3/4")
    (3/4")    		 23
    27
    27    		 40.6
    49.4
    75.0    		 38.0
    47.5
    72.7
    ND-16
    Note : For DIN 2527 ND-10-4 Holes    		 10
    15
    20    		 90
    95
    105    		 14
    14
    16    		 60
    65
    75    		 40
    45
    58    		 2
    2
    2    		 4
    4
    4    		 M12
    M12
    M12    		 (1/2")
    (1/2")
    (1/2")    		 14
    14
    14    		 0.63
    0.72
    1.01    		 0.56
    0.64
    0.93
    25
    32
    40    		 115
    140
    150    		 14
    14
    16    		 60
    65
    75    		 40
    45
    58    		 2
    2
    2    		 4
    4
    4    		 M12
    M16
    M16    		 (1/2")
    (5/8")
    (5/8")    		 14
    18
    18    		 1.23
    1.80
    2.09    		 1.13
    1.66
    1.85
    50
    65
    80    		 165
    185
    200    		 18
    18
    20    		 125
    145
    160    		 102
    122
    138    		 3
    3
    3    		 4
    4
    4/8    		 M16
    M16
    M16    		 (5/8")
    (5/8")
    (5/8")    		 18
    18
    18    		 2.88
    3.66
    4.77    		 2.59
    3.33
    4.34
    100
    125
    150    		 220
    250
    285    		 20
    22
    22    		 180
    210
    240    		 158
    188
    212    		 3
    3
    3    		 8
    8
    8    		 M16
    M16
    M16    		 (5/8")
    (5/8")
    (5/8")    		 18
    18
    18    		 2.88
    3.66
    4.77    		 2.59
    3.33
    4.34
    100
    125
    150    		 220
    250
    285    		 20
    22
    22    		 180
    210
    240    		 158
    188
    212    		 3
    3
    3    		 8
    8
    8    		 M16
    M16
    M20    		 (5/8")
    (5/8")
    (3/4")    		 18
    18
    23    		 5.65
    8.42
    10.4    		 5.26
    7.67
    9.85
    (175)
    200
    250    		 315
    340
    405    		 24
    24
    26    		 270
    295
    355    		 242
    268
    320    		 3
    3
    3    		 8
    12
    12    		 M20
    M20
    M20    		 (3/4") 
    (3/4") 
    (7/8")    		 23
    23
    27    		 14.0
    16.1
    24.9    		 13.5
    15.6
    23.9
    300
    350
    400    		 460
    520
    580    		 28
    30
    32    		 410
    470
    525    		 378
    438
    490    		 4
    4
    4    		 12
    16
    16    		 M24
    M24
    M27    		 (7/8")
    (7/8")
    (1")    		 27
    27
    30    		 35.1
    47.8
    63.5    		 33.6
    46.2
    61.5
    500 715 34 650 610 4 20 M30 (1-1/8") 33 102 99.5
    ND-25
    Note: From 10mm to 150 mm
    see ND-40
    		(175)
    200
    250    		 330
    360
    425    		 28
    30
    32    		 280
    310
    370    		 248
    278
    335    		 3
    3
    3    		 12
    12
    12    		 M24
    M24
    M24    		 (7/8")
    (7/8")
    (1")    		 27
    27
    30    		 17.3
    22.3
    33.5    		 16.5
    21.5
    32.5
    300
    350
    400    		 485
    555
    620    		 34
    38
    40    		 430
    490
    550    		 395
    450
    505    		 4
    4
    4    		 16
    16
    16    		 M27
    M30
    M33    		 (1")
    (1-1/8")
    (1- 1/4")    		 30
    33
    36    		 46.3
    68.0
    89.7    		 44.7
    65.9
    87.0
    500 730 44 660 615 4 20 M33 (1-1/4") 36 138 134
    ND-40 10
    15
    20    		 90
    95
    105    		 16
    16
    16    		 60
    65
    75    		 40
    45
    58    		 2
    2
    2    		 4
    4
    4

    M12
    M12
    M12

    		 (1/2")
    (1/2")
    (1/2")    		 14
    14
    14    		 0.72
    0.81
    1.24    		 0.62
    0.74
    1.05
    25
    32
    40    		 115
    140
    150    		 18
    18
    18    		 85
    100
    110    		 68
    78
    88    		 2
    2
    2    		 4
    4
    4    		 M12
    M12
    M12    		 (1/2")
    (5/8")
    (5/8")    		 14
    18
    18    		 1.38
    2.03
    2.35    		 1.31
    1.82
    2.11
    50
    65
    80    		 165
    185
    200    		 20
    22
    24    		 125
    145
    160    		 102
    122
    138    		 3
    3
    3    		 4
    8
    8    		 M16
    M16
    M16    		 (5/8") 
    (5/8") 
    (5/8")    		 18
    18
    18    		 3.20
    4.29
    5.88    		 2.91
    4.13
    5.21
    100
    125
    150    		 235
    270
    300    		 24
    26
    28    		 190
    220
    250    		 162
    188
    218    		 3
    3
    3    		 8
    8
    8    		 M20
    M24
    M24    		 (3/4")
    (7/8") 
    (7/8")    		 23
    27
    27    		 7.54
    10.8
    14.5    		 7.08
    10.4
    13.9
    175
    200
    250    		 350
    375
    450    		 32
    34
    38    		 295
    320
    385    		 260
    285
    345    		 3
    3
    3    		 12
    12
    12    		 M27
    M27
    M27    		 (1")
    (1")
    (1-1/8")    		 30
    30
    30    		 22.1
    27.2
    43.8    		 21.3
    26.2
    43.1
    300
    350
    400    		 515
    580
    660    		 42
    46
    50    		 450
    510
    585    		 410
    465
    535    		 4
    4
    4    		 16
    16
    16    		 M30
    M33
    M36    		 (1-1/8")
    (1-1/8")
    (1-1/8")    		 33
    36
    39    		 63.3
    89.5
    127    		 62.2
    87.2
    124
    500 755 52 670 615 4 20 M39 (1-1/2") 42 172 168


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    DIN 2576

    FLANGES, SLIP-ON TYPE FOR BRITISH OR WELDING NOMINAL PRESSURE 10
    Pipe Flange
    		Bolts Weight of
    one flange
    7.85 kg/
    dm3) kg
    NW d1 ds D b1 k Number Thread d2
    10 14
    17.2)    		 14.5
    17.7    		 90 14 60 4 M12 (1/2") 14 0.613
    0.605
    15 20
    21.3)    		 20.5
    21.8    		 95 14 65 4 M12 (1/2") 14 0675
    0.669
    20 25
    26.9)    		 25.5
    27.4    		 105 16 75 4 M12 (1/2") 14 0.947
    0.936
    25 30
    33.7)    		 30.5
    34.2    		 115 16 85 4 M12 (1/2") 14 1.14
    1.11
    32 38
    42.4)    		 38.5
    42.9    		 140 16 100 4 M16 (5/8") 18 1.66
    1.62
    40 44.5
    48.3)    		 45
    48.8    		 150 16 110 4 M16 (5/8") 18 1.89
    1.86
    50 57
    60.3)    		 57.5
    60.8    		 165 18 125 4 M16 (5/8") 18 2.51
    2.47
    65 76.1) 76.6 185 18 145 4 M16 (5/8") 18 3.00
    80 88.9) 89.4 200 20 160 4 M16 (5/8") 18 3.79
    100 108
    114.3)    		 108.5
    114.8    		 220 20 180 8 M16 (5/8") 18 4.20
    4.03
    125 133
    139.7)    		 133.5
    140.2    		 250 22 210 8 M16 (5/8") 18 5.71
    5.46
    150 159
    168.3)    		 159.5
    168.8    		 285 22 210 8 M16 (3/4") 23 6.72
    6.57
    175 191
    193.7)    		 192
    194.7    		 315 24 270 8 M20 (3/4") 23 8.60
    8.45
    200 216
    219.1)    		 216
    220.1    		 340 24 295 8 M20 (3/4") 23 9.50
    9.31
    250 267
    273)    		 268
    274    		 395 26 350 12 M20 (3/4") 23 12.5
    11.9
    400 406.4
    419    		 407.4
    420    		 565 32 515 16 M24 (7/8") 27 27.9
    25.9
    500 508)
    521    		 509
    522    		 670 38 620 20 M24 (7/8") 27 37.9
    41.1

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    DIN 2632


    WELDING NECK FLANGES FOR NOMINAL PRESSURE 10
    Pipe Flange Neck Raised
    face    		 Bolts
    		Weight of
    one flange
    7.85 kg/dm3)
    kg
    NW d1 D b k h1 d3 s f h2 d4 f No. Thread d2
    200 216 340 24 295 62 232 5.9 10 16 268 3 8 M20 (3/4") 23 11.3
    219.1 235
    250 267 395 26 350 68 285 6.3 12 16 320 3 12 14.7
    273 295
    300 318 445 26 400 68 335 7.1 12 16 370 4 17.6
    323.9 344
    350 355.6 505 26 460 68 385 7.1 12 16 430 4 16 M24 (3/8") 27
    368 21.4
    400 406.4 565 26 515 72 440 7.1 12 16 482 4
    419 26.1
    500 508 670 28 620 75 542 7.1 12 16 585 4 20
    521 34.7
    600 609.6 780 28 725 80 642 7.1 12 18 685 5 M27 (1") 30
    622 42.2

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    DIN 2633

    WELDING NECK FLANGES NOMINAL PRESSURE 16
    Pipe Flange Neck Raised
    face    		 Bolts Weight of 
    one flange
    7.85 kg/dm3)
    kg
    NW d1 D b k h1 d3 s r h2 d4 f No. Thread d2
    10 14 90 14 60 35 25 1.8 4 6 40 2 4 M12 (1/2") 14 0.580
    17.2 28
    15 20 95 14 65 35 30 2 4 6 45 2 0.648
    21.3 32
    20 25 105 16 85 38 42 2.3 4 6 58 2 0.952
    26.9 45
    25 30 115 16 85 38 42 2.6 4 6 68 2 1.14
    33.7 45
    32 38 140 16 100 40 52 2.6 4 6 78 2
    M16
    (5/8")
    18
    		 1.69
    42.4 56
    40 44.5 150 16 100 40 60 2.6 6 6 88 3 1.86
    48.3 64
    50 57 165 18 125 45 72 2.9 6 8 102 3 2.53
    60.3 75
    65 76.1 185 18 145 45 90 2.9 6 10 122 3 306
    80 88.9 200 20 160 50 105 3.2 8 10 138 3 4/8 3.70
    100 108 220 20 180 52 125 3.6 8 12 158 3
    8
    		 4.62
    114.3 131
    125 133 250 22 210 55 150 4 8 12 188 3 6.30
    139.7 156
    150 159 285 22 240 55 150 4 8 12 188 3 M20 (3/4") 23 7.75
    168.3 156
    175 191 315 24 270 60 208 5.4 10 12 242 3 8
    M20
    (3/4")
    23
    		 10.0
    193.7 210
    200 216 340 24 295 62 232 5.9 10 16 268 3
    12
    219.1 235 11.0
    250 267 405 26 355 70 285 6.3 12 16 320 3
    M24
    (7/8")
    27
    		 15.6
    273 292
    300 318 460 28 410 78 388 7.1 12 16 378 4 22.0
    323.9 344
    350 355.6 520 30 470 82 390 8 12 16 438 4 16
    368 28.7
    400 406.4 580 32 525 85 445 8 12 16 490 4 M27 (1") 30
    419 36.3
    500 508 715 34 650 90 548 8 12 16 610 4 20 M30 (1-1/8") 33
    521 59.3
    600 609.6 840 36 770 95 652 8.8 12 18 725 5 M33 (1-1/4") 36
    622 73.4
    700 711.2 910 36 840 100 755 8.8 12 18 795 5
    24
    720 75.0
    800 812.8 1025 38 950 105 855 10 12 20 900 5 M36 (1-3/8") 39
    820 99.0
    900 914.4 1125 40 1050 110 955 10 12 20 1000 5 28
    920 119
    1000 1016 1255 42 1170 120 1058 10 16 22 1115 5
    		M39 (1-1/2") 42
    1020 159

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    DIN 2634


    WELDING NECK FLANGE NOMINAL PRESSURE 25
    Pipe Flange Neck Raised
    face    		 Bolts Weight of
    one flange
    (7.85 kg/dm3)
    kg.
    NW d1 D b k h1 d3 s r h2 d4 f No. Thread d2
    175 (191) 330 28 280 75 215 5.6 10 15 248 3 12
    		M24 (7/8") 27 13.4
    193.7 218
    200 216 360 30 310 80 240 6.3 10 16 278 3 17.0
    219.1 244
    250 267 425 32 370 88 292 7.1 12 18 335 3
    M27
    (1")
    30
    		 24.4
    273 298
    300 318 485 34 430 92 345 8 12 18 395 4 16
    323.9 352 31.2
    350 355.6 555 38 490 100 398 8 12 20 450 4 M30 (1-1/8") 33
    368 45.0
    400 406.4 620 40 550 110 452 8.8 12 20 505 4
    419 58.7
    500 508 730 44 660 125 558 10 12 20 615 4
    20
    		 M33 (1-1/4") 36
    521 86.1
    600 609.6 845 46 770 125 660 11 12 20 720 5 M36 (1-3/8") 39
    622 101

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    DIN 2642, DIN Connections


    LOOSE FLANGE FOR FLANGE COLLAR PN 10
    Nom
    Pipe 
    size    		 Flange
    D
    mm    		 d5
    mm    		 b
    mm    		 r
    mm    		 k
    mm

    Drilling
    Number

    		 d2
    mm    		 Weight
    kg    		 Collar
    g
    mm
    10
    15
    20    		 90
    95
    105    		 16
    23
    28

    16
    16
    16

    5
    5
    5

    		 60
    65
    75    		 4
    4
    4

    15
    15
    15

    		 0.23
    0.26
    0.30    		 45
    50
    60

    25
    32
    40

    		 115
    140
    150    		 33
    42
    50    		 16
    16
    16

    5
    5
    5

    		 85
    100
    110

    4
    4
    4

    		 15
    18
    18    		 0.37
    0.54
    0.5    		 70
    82
    0.92
    50
    65
    80    		 165
    185
    200    		 62
    81
    94    		 18
    18
    20

    5
    5
    5

    		 125
    145
    160

    4
    4
    4

    		 18
    18
    18    		 0.80
    0.90
    1.28    		 107
    127
    142
    100
    125
    150    		 220
    250
    285    		 113
    138
    164    		 20
    22
    22

    5
    6
    6

    		 180
    210
    240    		 8
    8
    8    		 18
    18
    22    		 1.37
    1.78
    2.27    		 162
    192
    218
    175
    200
    250    		 315
    340
    395    		 195
    222
    273    		 24
    24
    26

    6
    7
    7

    		 270
    295
    350    		 8
    8
    12    		 22
    22
    22    		 2.90
    3.16
    4.22    		 248
    273
    328
    300
    350
    400    		 445
    505
    565    		 324
    374
    426    		 26
    26
    32

    7
    8
    8

    		 400
    460
    515    		 12
    16
    16    		 22
    22
    25    		 4.80
    5.85
    8.45    		 378
    438
    490
    450
    500
    600    		 615
    670
    780    		 475
    530
    630    		 32
    34
    36

    8
    8
    10

    		 565
    620
    725    		 20
    20
    20    		 25
    25
    30    		 9.45
    11.35
    15.30    		 540
    595
    695
    700
    800    		 895
    1015    		 730
    832    		 40
    44    		 10
    10    		 840
    950    		 24
    24    		 30
    34    		 21.40
    30.50    		 810
    916

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    DIN 2635


    WELDING NECK FLANGES NOMINAL PRESSURE 40
    Pipe Flange Neck Raised Bolts Weight of
    one flange
    7.85 kg/dm3)
    kg
    NW d1 D b k h1 d3 s r h2 d4 f No. Thread d2
    10 14 90 16 60 35 25 1.8 4 6 40 2 4 M12 (1/2") 14 0.661
    17.2 28
    15 20 95 16 65 38 30 2 4 6 45 2
    		0.746
    21.3 32
    20 25 105 18 75 40 38 2.3 4 6 58 2
    		106
    26.9 40
    25 30 115 18 85 40 42 2.6 4 6 68 2
    		1.29
    33.7 46
    32 38 140 18 100 42 52 2.6 6 6 78 2
    		1.88
    42.4 56
    40 44.5 150 18 110 45 60 2.6 6 7 88 3
    		2.33
    48.3 64
    50 57 165 20 125 48 72 2.9 6 8 102 3
    		M16 (5/8") 18 2.82
    60.3 75
    65 76.1 185 22 145 52 90 2.9 6 10 122 3
    		3.74
    80 88.9 200 24 160 58 105 3.2 8 12 138 3
    		4.75
    100 108 235 24 190 65 128 3.6 8 12 138 3 8 M20 (3/4") 23 6.52
    114.3 134
    125 133 270 26 220 68 155 4 8 12 188 3 8 M24 (7/8") 27 9.07
    139.7 162
    150 159 300 28 250 75 182 4.5 10 12 188 3
    		M24 (7/8")
    		11.8
    168.3 192
    175 191 350 32 295 82 215 5.6 10 16 285 3 12 M27 (1") 30 18.2
    193.7 218
    200 216 375 34 320 88 240 6.3 10 16 285 3
    		21.5
    219.1 244
    250 267 450 38 385 105 298 7.1 12 18 345 3
    		34.9
    273 306
    300 318 515 42 450 115 352 8 12 18 410 4 16 M30 (1-1/8") 33 49.7
    323.9 362
    350 355.6 580 46 510 125 408 8.8 12 20 460 4
    		M33 (1-1/4") 36
    368 68.1
    400 406.4 660 50 585 135 462 11 12 20 535 4
    		M36 (1-3/8") 39
    419 96.5
    500 508 755 52 670 140 562 14.2 12 20 615 4 20 M39 (1-1/2") 42
    521 117

    | Top |



    Technical Info
    Chemical Composition Mechanical Composition Weight & Dimensions of Schedule Pipe
    Nickel Alloy products
    Special Alloys products
    Titanium Alloys
    Socket weld Fittings
    Flanges Dimensions
         • 150 LB. Flanges
         • 300 LB. Flanges
         • 600 LB. Flanges
         • 900 LB. Flanges
         • 1500 LB. Flanges
         • 2500 LB Flanges
         • Welding Neck Flange Bores
         • DIN 2527
         • DIN 2576
         • DIN 2632
         • DIN 2633
         • DIN 2634
         • DIN 2642, DIN Connections
         • DIN 2635
    ASTM Standard Used for Sheets/Plates
    Carbon Steel Pipes
    Carbon Steel Pipe Fittings
    Cupro Nickel
    Pipe Data
    Weight of ERW Black Tubes
    ASTM A 193/A193 AS, CS & SS Bolting For High-Temperature Service
    Weight Formula
    SS, CS & AS ASTM Pipe & Fitting Cross References
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