Dimensions Weld Neck Flanges Type 11 PN320 DIN EN 1092/1

Vorschweiss-Flansche Type 11 DIN EN 1092-1

OTHER PRESSURE CLASSES

PN320
DN A B C D E F
10 125 85 40 2.6 17.2 44
15 130 90 45 3.2 21.3 48
25 160 115 68 5 33.7 68
40 195 145 88 6.3 48.3 92
50 210 160 102 8 63.5 106
65 255 200 122 11 88.9 138
80 275 220 138 12.5 101.6 156
100 335 265 162 16 133 186
125 380 310 188 20 168.3 230
150 425 350 218 25 193.7 265
200 525 440 285 30 244.5 345
250 640 540 345 40 323.9 428

Vorschweiss-Flansche Type 11 DIN EN 1092-1
DN G H K M N R
10 18 2 24 58 6 4
15 18 2 26 60 6 4
25 22 2 34 78 8 4
40 26 3 38 88 10 6
50 26 3 42 100 10 6
65 30 3 51 120 12 6
80 30 3 55 130 14 8
100 36 3 65 145 16 8
125 36 3 75 175 20 8
150 39 3 84 195 25 10
200 42 3 103 235 30 10
250 52 3 125 300 40 12

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 70 5/8" 90
15 4 M16 75 5/8" 95
25 4 M20 95 3/4" 115
40 4 M24 110 7/8" 135
50 8 M24 115 7/8" 140
65 8 M27 140 1" 165
80 8 M27 145 1" 175
100 8 M33 170 1.1/4" 210
125 12 M33 190 1.1/4" 230
150 12 M36 215 1.3/8" 255
200 16 M39 255 1.1/2" 300
250 16 M48 310 1.7/8" 365

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..

  • Dimensions are in millimeters unless otherwise indicated.
  • Butt-weld ends (must be specified when ordering) DIN 3239-1-R6 edge form 22 to DIN 2559 (DIN EN ISO 9692)

Special notes..

  • Hex bolt lengths and diameters and lengths of Stud Bolts are calculated by the author of this website.
  • All lengths are calculated without washers, spring washers etc. and free threads (equals 1/3 time bolt diameter)
  • All lengths are calculated with a gasket thickness of 3 mm.
  • The dimensions of the bolts are calculated for the type 11 weld neck flange. Other types of flanges can be have different bolt hole diameters and thicknesses, so that the bolts even can have different dimensions.

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.



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