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Dimension of PN 25 Flanges

Dimensions in mm

Size D
OD		 D1
NK OD		 A
ID 2573 Sorf		 B
Thk 2631 Wnrf		 B1
Thk 2573 Birf		 B2
Thk 2527 Sorf		 k
PCD		 h1
Wnrf Height		 d3 s
Nk Thk		 r h2 d4
RF 2631 Wnrf		 f
Rf Thk		 No of Holes Size Bolt O
Hole Dia
10 90 17.2 17.7 16 16 16 60 35 28 1.8 4 6 40 2 4 M 12 14
15 95 21.3 22 16 16 16 65 38 32 2 4 6 45 2 4 M 12 14
20 105 26.9 27.6 18 18 18 75 40 40 2.3 4 6 58 2 4 M 12 14
25 115 33.7 34.4 18 18 18 85 40 46 2.6 4 6 68 2 4 M 12 14
32 140 42.4 43.1 18 18 18 100 42 56 2.6 6 6 78 2 4 M 16 18
40 150 48.3 49 18 18 18 110 45 64 2.6 6 7 88 3 4 M 16 18
50 165 60.3 61.1 20 20 20 125 48 75 2.9 6 8 102 3 4 M 16 18
65 185 76.1 77.1 22 22 22 145 52 90 2.9 6 10 122 3 8 M 16 18
80 200 88.9 90.3 24 24 24 160 58 105 3.2 8 12 138 3 8 M 16 18
100 235 114.3 115.9 24 24 24 190 65 134 3.6 8 12 162 3 8 M 20 22
125 270 139.5 141.6 26 26 26 220 68 162 4 8 12 188 3 8 M 24 26
150 300 168.3 170.5 28 28 28 250 75 192 4.5 10 12 218 3 8 M 24 26
175 330 193.7 196.1 28 28 28 280 75 218 5.6 10 15 248 3 12 M 24 26
200 360 219.1 221.8 30 30 30 310 80 244 6.3 10 16 278 3 12 M 24 26
250 425 273 276.2 32 32 32 370 88 298 7.1 12 18 355 3 12 M 27 30
300 485 323.9 327.6 34 34 34 430 92 352 8 12 18 395 4 16 M 27 30
350 555 355.6 359.7 38 38 38 490 100 398 8 12 20 450 4 16 M 30 33
400 620 406.4 411 40 40 40 550 110 452 8.8 12 20 505 4 16 M 33 36
450 670 457 462.5 42   42 600 110 500 8.8 12 20 550 4 20 M 33 36
500 730 508 513.6 44 45 44 660 125 558 10 12 20 615 4 20 M 33 36
600 845 610 - 46     770 125 660 11 12 20 720 5 20 M 36 39
700 960 711 - 46     875 125 760 13 20 24 820 5 24 M 39 42
800 1085 813 - 50     990 135 865 14 22 24 930 5 24 M 45 48
900 1185 914   54     1090 145 968 16 24 28 1030 5 28 M 45 48
1000 1320 1016   58     1210 155 1070 18 24 28 1140 5 28 M 52 56

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