| DN |
Outside Diameter of Flange (D) |
Thickness of flange minimum (b) |
Bolts | Drilling No |
Bolt Hole diameter (d1) |
Pitch Circle of Bolt Holes (d) |
|---|---|---|---|---|---|---|
| 10 | 75 | 10 | M10 | 4 | 11 | 50 |
| 15 | 80 | 10 | M10 | 4 | 11 | 55 |
| 20 | 90 | 10 | M10 | 4 | 11 | 65 |
| 25 | 100 | 10 | M10 | 4 | 11 | 75 |
| 32 | 120 | 10 | M12 | 4 | 14 | 90 |
| 40 | 130 | 10 | M12 | 4 | 14 | 100 |
| 50 | 140 | 10 | M12 | 4 | 14 | 110 |
| 65 | 160 | 10 | M12 | 4 | 14 | 130 |
| 80 | 190 | 10 | M16 | 4 | 18 | 150 |
| 100 | 210 | 10 | M16 | 4 | 18 | 170 |
| 1251) | 240 | 12 | M16 | 8 | 18 | 200 |
| 150 | 265 | 12 | M16 | 8 | 18 | 225 |
| 1751) | 295 | 14 | M16 | 8 | 18 | 255 |
| 200 | 320 | 14 | M16 | 8 | 18 | 280 |
| 2251) | 345 | 16 | M16 | 8 | 18 | 305 |
| 250 | 375 | 16 | M16 | 12 | 18 | 335 |
| 300 | 440 | 20 | M20 | 12 | 22 | 395 |
| 350 | 490 | 22 | M20 | 12 | 22 | 445 |
| 400 | 540 | 22 | M20 | 16 | 22 | 495 |
| 450 | 595 | 25 | M20 | 16 | 22 | 550 |
| 500 | 645 | 25 | M20 | 20 | 22 | 600 |
| 5501) | 705 | 28 | M24 | 20 | 26 | 655 |
| 600 | 755 | 30 | M24 | 20 | 26 | 705 |
| 650 | - | - | - | - | - | - |
| 1) Non-preferred size. | ||||||
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