| 公称直径 | 6.4MPa | 10.0MPa | ||||
| Dg | HG | HGJ | SY | HG | HGJ | SY |
| 25 | 3.5 | 3 | 4 | 4 | ||
| 32 | 3.5 | 3.5 | 4.5 | 4.5 | ||
| 40 | 3.5 | 3.5 | 3.5 | 4.5 | 4.5 | 4.5 |
| 50 | 3.5 | 3.5 | 3.5 | 5 | 5 | 5 |
| 65 | 4.5 | 4.5 | 4.5 | 6 | 6 | 6 |
| 80 | 5 | 5 | 5 | 6 | 7 | 7 |
| 100 | 6 | 6 | 6 | 8 | 8 | 8 |
| 125 | 6 | 6 | 7 | 9 | 9 | 10 |
| 150 | 6 | 7 | 8 | 10 | 10 | 12 |
| 175 | 7 | 9 | 10 | 12 | 12 | 14 |
| 200 | 9 | |||||
| 225 | 9 | |||||
| 250 | 11 | 11 | 11 | 16 | ||
| 300 | 12 | 12 | 12 | 20 | ||
| 350 | 15 | 22 | ||||
| 400 | 16 | 25 | ||||
| 450 | ||||||
| 500 | ||||||
| 600 | ||||||