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DIN ISO EN

Dimensions Weld Neck Flanges Type 11 PN400 DIN EN 1092/1

Vorschweiss-Flansche Type 11 DIN EN 1092-1

Other Pressure Nominal

DN A B C D E F
10 125 85 40 3.6 17.2 48
15 145 100 45 5 26.9 56
25 180 130 68 7.1 42.4 82
40 220 165 88 10 60.3 106
50 235 180 102 12.5 76.1 120
65 290 225 122 16 101.6 158
80 305 240 138 17.5 114.3 174
100 370 295 162 22.2 139.7 216
125 415 340 188 30 193.7 258
150 475 390 218 35 219.1 302
200 585 490 285 40 273 388
DN A B C D E F
Vorschweiss-Flansche Type 11 DIN EN 1092-1
DN G H K M N R
10 18 2 28 65 8 4
15 22 2 30 68 8 4
25 26 2 38 90 10 4
40 30 3 48 110 12 6
50 30 3 52 120 15 6
65 33 3 64 135 18 6
80 33 3 68 150 20 8
100 39 3 80 175 25 8
125 39 3 92 200 30 8
150 42 3 105 225 35 10
200 48 3 130 280 40 10
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 M16 80 5/8" 100
15 4 M20 85 3/4" 110
25 4 M24 110 7/8" 135
40 4 M27 130 1" 160
50 8 M27 140 1" 170
65 8 M30 165 1.1/8" 200
80 8 M30 175 1.1/8" 205
100 8 M36 205 1.3/8" 245
125 12 M36 230 1.3/8" 270
150 12 M39 260 1½" 305
200 16 M45 315 1¾" 370
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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