TABLE 2.5/3 STEEL PLATE FLANGES FOR WELDING
Nominal pressure 2.5 bar (1 bar = 100000 N/m2)

Nom size | pipe o.d. d1 | ......FLANGE...... | Raised face | Bolting | ..............Drilling................. | ||||
D | b | d4 | f | No. | D2 | k | |||
10 | 17.2 | 75 | 12 | 35 | 2 | M10 | 4 | 11 | 50 |
15 | 21.3 | 80 | 12 | 40 | 2 | M10 | 4 | 11 | 55 |
20 | 26.9 | 90 | 14 | 50 | 2 | M10 | 4 | 11 | 65 |
25 | 33.7 | 100 | 14 | 60 | 2 | M10 | 4 | 11 | 75 |
32 | 42.4 | 120 | 16 | 70 | 2 | M12 | 4 | 14 | 90 |
40 | 48.3 | 130 | 16 | 80 | 3 | M12 | 4 | 14 | 100 |
50 | 60.3 | 140 | 16 | 90 | 3 | M12 | 4 | 14 | 110 |
65 | 76.1 | 160 | 16 | 110 | 3 | M12 | 4 | 14 | 130 |
80 | 88.9 | 190 | 18 | 128 | 3 | M16 | 4 | 18 | 150 |
100 | 114.3 | 210 | 18 | 148 | 3 | M16 | 4 | 18 | 170 |
125 | 139.7 | 240 | 20 | 178 | 3 | M16 | 8 | 18 | 200 |
150 | 168.3 | 265 | 20 | 202 | 3 | M16 | 8 | 18 | 225 |
200 | 219.1 | 320 | 22 | 258 | 3 | M16 | 8 | 18 | 280 |
250 | 273 | 375 | 24 | 312 | 3 | M16 | 12 | 18 | 335 |
300 | 323.9 | 440 | 24 | 365 | 4 | M20 | 12 | 22 | 395 |
350 | 355.6 | 490 | 26 | 415 | 4 | M20 | 12 | 22 | 445 |
400 | 406.4 | 540 | 28 | 465 | 4 | M20 | 16 | 22 | 495 |
450 | 457.2 | 595 | 30 | 520 | 4 | M20 | 16 | 22 | 550 |
500 | 508 | 645 | 30 | 570 | 4 | M20 | 20 | 22 | 600 |
600 | 609.6 | 755 | 32 | 670 | 5 | M24 | 20 | 26 | 705 |
700 | 711.2 | 860 | 34 | 775 | 5 | M24 | 24 | 26 | 810 |
800 | 812.8 | 975 | 38 | 880 | 5 | M27 | 24 | 30 | 920 |
900 | 914.4 | 1075 | 42 | 980 | 5 | M27 | 24 | 30 | 1020 |
1000 | 1016 | 1175 | 46 | 1080 | 5 | M27 | 28 | 30 | 1120 |
1200 | 1220 | 1375 | 36 | 1280 | 5 | M27 | 32 | 30 | 1320 |
1400 | 1420 | 1575 | 42 | 1480 | 5 | M27 | 36 | 30 | 1520 |
1600 | 1620 | 1790 | 46 | 1690 | 5 | M27 | 40 | 30 | 1730 |
1800 | 1820 | 1990 | 52 | 1890 | 5 | M27 | 44 | 30 | 1930 |
2000 | 2020 | 2190 | 58 | 2090 | 5 | M27 | 48 | 30 | 2130 |