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    DIN 2527 Flanges


    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