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DIN ISO EN

Dimensions Weld Neck Flanges Type 11 PN40 DIN EN 1092/1

Vorschweiss-Flansche Type 11 DIN EN 1092-1

Other Pressure Nominal

DN A B C D E F
10 90 60 40 2 17.2 28
15 95 65 45 2 21.3 32
20 105 75 58 2.3 26.9 40
25 115 85 68 2.6 33.7 46
32 140 100 78 2.6 42.4 56
40 150 110 88 2.6 48.3 64
50 165 125 102 2.9 60.3 75
65 185 145 122 2.9 76.1 90
80 200 160 138 3.2 88.9 105
100 235 190 162 3.6 114.3 134
125 270 220 188 4 139.7 162
150 300 250 218 4.5 168.3 192
200 375 320 285 6.3 219.1 244
250 450 385 345 7.1 273 306
300 515 450 410 8 323.9 362
350 580 510 465 8.8 355.6 408
400 660 585 535 11 406.4 462
450 685 610 560 12.5 457 500
500 755 670 615 14.2 508 562
600 890 795 735 16 610 666
DN A B C D E F
Vorschweiss-Flansche Type 11 DIN EN 1092-1
DN G H K M N R
10 14 2 16 35 6 4
15 14 2 16 38 6 4
20 14 2 18 40 6 4
25 14 2 18 40 6 4
32 18 2 18 42 6 6
40 18 3 18 45 7 6
50 18 3 20 48 8 6
65 18 3 22 52 10 6
80 18 3 24 58 12 8
100 22 3 24 65 12 8
125 26 3 26 68 12 8
150 26 3 28 75 12 10
200 30 3 34 88 16 10
250 33 3 38 105 18 12
300 33 4 42 115 18 12
350 36 4 46 125 20 12
400 39 4 50 135 20 12
450 39 4 57 135 20 12
500 42 4 57 140 20 12
600 48 5 72 150 20 12
DN G H K M N R
Vorschweiss-Flansche Type 11 DIN EN 1092-1
DN No of
bolts
Dia of
Hex Bolts
Length of
Hex Bolts
Dia of
Stud Bolts
Length of
Stud Bolts
10 4 M12 50 1/2" 65
15 4 M12 50 1/2" 65
20 4 M12 55 1/2" 70
25 4 M12 55 1/2" 70
32 4 M16 60 5/8" 80
40 4 M16 60 5/8" 80
50 4 M16 65 5/8" 80
65 8 M16 65 5/8" 85
80 8 M16 70 5/8" 90
100 8 M20 75 3/4" 95
125 8 M24 85 7/8" 110
150 8 M24 90 7/8" 115
200 12 M27 105 1" 130
250 12 M30 115 1.1/8" 145
300 16 M30 125 1.1/8" 155
350 16 M33 135 1¼" 170
400 16 M36 145 1.3/8" 185
450 20 M36 160 1.3/8" 200
500 20 M39 165 1½" 205
600 20 M45 200 1¾" 250
DN No of
bolts
Dia of
Hex Bolts
Length of
Hex Bolts
Dia of
Stud Bolts
Length of
Stud Bolts

Indications:

  • A = Outside Diameter
  • B = Diameter of Bolt Circle
  • G = Diameter of Bolt Holes
  • C = Diameter of Raised Face
  • H = Height of Raised Face
  • E = Outside Diameter of Neck
  • K = Flange thickness
  • M = Length of Flange
  • N = Length of right end
  • F = Neck Diameter
  • R = Radius of Corners
  • D = Wall thickness
Vorschweiss Flansch

General notes:

Special notes:

Note 1: ISO 7005-1 (steel flanges) PN 20, 50, 110, 150, 260, 420 are designed to be interchangeable with ASME B16.5 and MSS SP-44 flanges - ISO 7005-1 flanges are not identical to ASME B 16.5 and MSS SP 44 flanges but are deemed to comply with the dimensions specified in the ASME B 16.5 and MSS SP 44.

ISO 7005-2 (cast iron) flanges PN 20, 50 are designed to be interchangeable with ANSI/ASME B16.1 (gray cast iron) and B 16.42 (ductile cast iron) but they are not identical. They are deemed to comply with dimensions specified in ASME B16.1 (grey cast iron) and B 16.42 (ductile cast iron).

Note 2: ISO PN 2.5, 6 do not have a corresponding ASME class and ASME Class 75, 400 and 800 do not have corresponding ISO PN designation. The use of these PN and Class flange ratings are therefore not recommended.

Measuring lengths of Stud Bolts and Hex bolts
PP
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