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Dimensions of PN 160 flanges

This diagram illustrates the arrangement but not necessarily the correct number of bolt holes K D L
This diagram illustrates the arrangement but not necessarily the correct number of bolt holes
Flange type 05 C 4 G max
Flange type 05
Flange type 11 H 2 A N 1 S C 2 H 3 R 1
Flange type 11
Flange type 21 N 3 C 3 A C 3 N 3 R 1 R 1
Flange type 21

DN Outside diameter $ D $ , in $ \mathrm{mm} $ Diameter of bolt circle $ K $ , in $ \mathrm{mm} $ Diameter of bolt hole $ L $ , in $ \mathrm{mm} $ Number of bolts Bolts size Outside diameter of neck $ A $ , in $ \mathrm{mm} $ Flange thickness $ C_4 $ , in $ \mathrm{mm} $ Flange thickness $ C_2 $ , in $ \mathrm{mm} $ Flange thickness $ C_3 $ , in $ \mathrm{mm} $ Centre portion $ G_{max} $ , in $ \mathrm{mm} $ Length $ H_2 $ , in $ \mathrm{mm} $ Length $ H_3 $ , in $ \mathrm{mm} $ Neck diameters $ N_1 $ , in $ \mathrm{mm} $ Neck diameters $ N_3 $ , in $ \mathrm{mm} $ Corner radius $ R_1 $ for flange type 11, in $ \mathrm{mm} $ Corner radius $ R_1 $ for flange type 21, in $ \mathrm{mm} $
10 100 70 14 4 M12 17.2 20 20 20 - 45 6 32 40 4 4
15 105 75 14 4 M12 21.3 20 20 20 - 45 6 34 45 4 4
25 140 100 18 4 M16 33.7 24 24 24 - 58 8 52 61 4 4
40 170 125 22 4 M20 48.3 28 28 28 - 64 10 70 82 6 4
50 195 145 26 4 M24 60.3 30 30 30 - 75 10 90 96 6 4
65 220 170 26 8 M24 76.1 34 34 34 42 82 12 108 118 6 5
80 230 180 26 8 M24 88.9 36 36 36 55 86 12 120 128 8 5
100 265 210 30 8 M27 114.3 40 40 40 74 100 12 150 150 8 5
125 315 250 33 8 M30 139.7 44 44 44 98 115 14 180 184 8 6
150 355 290 33 12 M30 168.3 50 50 50 119 128 14 210 224 10 6
200 430 360 36 12 M33 219.1 62 60 60 168 140 16 278 288 10 8
250 515 430 42 12 M39 273 72 68 68 195 155 18 340 346 12 8
300 585 500 42 16 M39 323.9 84 78 78 235 175 18 400 414 12 10
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