TABLE 38 PLATE FLANGES FOR WELDING
Nominal pressure 10 N/mm2. (All Dimensions in millimetres.)

Nom size |
Pipe o.d. d1 |
FLANGE | RAISED FACE | Bolting | ..........Drilling.......... | ||||
D | b | d4 | f | No. | d2 | k | |||
10 | 17.2 | 100 | 20 | 40 | 2 | M12 | 4 | 14 | 70 |
15 | 21.3 | 105 | 20 | 45 | 2 | M12 | 4 | 14 | 75 |
20 | 26.9 | 130 | 22 | 58 | 2 | M16 | 4 | 18 | 90 |
25 | 33.7 | 140 | 24 | 68 | 2 | M16 | 4 | 18 | 100 |
32 | 42.4 | 155 | 24 | 78 | 2 | M20 | 4 | 22 | 110 |
40 | 48.3 | 170 | 26 | 88 | 3 | M20 | 4 | 22 | 125 |
50 | 60.3 | 195 | 28 | 102 | 3 | M24 | 4 | 26 | 145 |
65 | 76.1 | 220 | 30 | 122 | 3 | M24 | 8 | 26 | 170 |
80 | 88.9 | 230 | 34 | 138 | 3 | M24 | 8 | 26 | 180 |
100 | 114.3 | 265 | 36 | 162 | 3 | M27 | 8 | 30 | 210 |
125 | 139.7 | 315 | 42 | 188 | 3 | M30 | 8 | 33 | 250 |
150 | 168.3 | 355 | 48 | 218 | 3 | M30 | 12 | 33 | 290 |
175 | 193.7 | 385 | 54 | 260 | 3 | M30 | 12 | 33 | 320 |
200 | 219.1 | 430 | 60 | 285 | 3 | M33 | 12 | 36 | 360 |
250 | 273 | 505 | 72 | 345 | 3 | M36 | 12 | 39 | 430 |
300 | 323.9 | 585 | 84 | 410 | 4 | M39 | 16 | 42 | 500 |
350 | 355.6 | 655 | 95 | 465 | 4 | M45 | 16 | 48 | 560 |
400 | 406.4 | 715 | 106 | 535 | 4 | M45 | 16 | 48 | 620 |
500 | 508 | 870 | 128 | 615 | 4 | M52 | 20 | 56 | 760 |