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DIN ISO EN

Dimensions Weld Neck Flanges Type 11 PN100 DIN EN 1092/1

Vorschweiss-Flansche Type 11 DIN EN 1092-1

Other Pressure Nominal

DN A B C D E F
10 100 70 40 2 17.2 32
15 105 75 45 3.2 21.3 34
20 130 90 58 3.2 26.9 42
25 140 100 68 3.6 33.7 52
32 155 110 78 3.6 42.4 62
40 170 125 88 3.6 48.3 70
50 195 145 102 4 60.3 90
65 220 170 122 4 76.1 108
80 230 180 138 5 88.9 120
100 265 210 162 5.6 114.3 150
125 315 250 188 6.3 139.7 180
150 355 290 218 8 168.3 210
200 430 360 285 8.8 219.1 278
250 505 430 345 10 273 340
300 585 500 410 12.5 323.9 400
350 655 560 465 14.2 355.6 460
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 20 45 6 4
15 14 2 20 45 6 4
20 18 2 22 48 8 4
25 18 2 24 58 8 4
32 22 2 24 60 8 6
40 22 3 26 62 10 6
50 26 3 28 68 10 6
65 26 3 30 76 12 6
80 26 3 32 78 12 8
100 30 3 36 90 12 8
125 33 3 40 105 12 8
150 33 3 44 115 12 10
200 36 3 52 130 16 10
250 39 3 60 157 18 12
300 42 4 68 170 18 12
350 48 4 74 189 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 60 1/2" 75
15 4 M12 60 1/2" 75
20 4 M16 65 5/8" 85
25 4 M16 70 5/8" 90
32 4 M20 75 3/4" 95
40 4 M20 80 3/4" 100
50 4 M24 90 7/8" 115
65 8 M24 90 7/8" 115
80 8 M24 95 7/8" 120
100 8 M27 110 1" 135
125 8 M30 120 1.1/8" 150
150 12 M30 125 1.1/8" 160
200 12 M33 145 1¼" 185
250 12 M36 165 1.3/8" 205
300 16 M39 185 1½" 230
350 16 M45 205 1¾" 255
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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