TABLE 64/3 STEEL PLATE FLANGES FOR WELDING
Nominal pressure 64 bar (1 bar = 100000 N/m2)
| Nom size | pipe o.d. d1 | FLANGE | Raised face | Bolting | Drilling | ||||
| D | b | d4 | f | No. | d2 | k | |||
| 50 | 60.3 | 180 | 26 | 102 | 3 | M20 | 4 | 22 | 135 |
| 65 | 76.1 | 205 | 26 | 122 | 3 | M20 | 8 | 22 | 160 |
| 80 | 88.9 | 215 | 30 | 138 | 3 | M20 | 8 | 22 | 170 |
| 100 | 114.3 | 250 | 32 | 162 | 3 | M24 | 8 | 26 | 200 |
| 125 | 139 | 295 | 34 | 188 | 3 | M27 | 8 | 30 | 240 |
| 150 | 168.3 | 345 | 36 | 218 | 3 | M30 | 8 | 33 | 280 |
| 175 | 193.7 | 375 | 40 | 260 | 3 | M30 | 12 | 33 | 310 |
| 200 | 219.1 | 415 | 46 | 285 | 3 | M33 | 12 | 36 | 345 |
| 250 | 273 | 470 | 54 | 345 | 3 | M33 | 12 | 36 | 400 |
| 300 | 323.9 | 530 | 62 | 410 | 4 | M33 | 16 | 36 | 460 |
| 350 | 355.8 | 600 | 72 | 465 | 4 | M36 | 16 | 39 | 525 |
| 400 | 406.4 | 670 | 78 | 535 | 4 | M39 | 16 | 42 | 585 |