| 表7.0.1-5 PN25 钢制管法兰用材料最大允许工作压力（表压） | (bar) | ||||||||||||||||||||
| 法兰材料 | 工作温度（℃） | ||||||||||||||||||||
| 类别号 | 20 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 375 | 400 | 425 | 450 | 475 | 500 | 510 | 520 | 530 | 540 | 550 | 575 | 600 |
| 1C1 | 25.0 | 25.0 | 25.0 | 24.4 | 23.7 | 22.5 | 20.9 | 20.0 | 19.4 | 16.9 | 14.0 | 9.7 | 6.5 | 4.2 | — | — | — | — | — | — | — |
| 1C2 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 23.3 | 22.2 | 21.4 | 16.9 | 14.0 | 9.7 | 6.5 | 4.2 | — | — | — | — | — | — | — |
| 1C3 | 25.0 | 25.0 | 24.4 | 23.7 | 23.0 | 21.9 | 20.4 | 19.4 | 18.8 | 15.9 | 13.3 | 9.6 | 6.5 | 4.2 | — | — | — | — | — | — | — |
| 1C4 | 23.0 | 22.5 | 20.9 | 20.4 | 19.7 | 18.8 | 17.5 | 16.7 | 16.5 | 14.8 | 12.6 | 9.5 | 6.5 | 4.2 | — | — | — | — | — | — | — |
| 1C9 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 24.3 | 23.5 | 23.1 | 22.7 | 22.1 | 21.5 | 17.1 | 12.5 | 10.7 | 9.4 | 8.2 | 7.0 | 6.1 | 4.2 | 2.9 |
| 1C10 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 24.8 | 24.4 | 23.9 | 18.3 | 14.0 | 12.6 | 11.2 | 9.8 | 8.5 | 7.4 | 5.1 | 3.3 |
| 1C13 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 24.9 | 24.3 | 23.6 | 22.8 | 15.1 | 10.4 | 9.1 | 8.2 | 7.3 | 6.5 | 5.8 | 4.3 | 3.0 |
| 1C14 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 21.9 | 14.8 | 12.6 | 11.2 | 9.6 | 8.2 | 7.2 | 5.0 | 3.4 |
| 2C1 | 23.0 | 22.1 | 18.9 | 17.2 | 16.0 | 15.0 | 14.2 | 13.7 | 13.5 | 13.2 | 12.9 | 12.7 | 12.5 | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.5 | 10.1 | 8.2 |
| 2C2 | 23.0 | 22.3 | 19.5 | 17.8 | 16.5 | 15.5 | 14.6 | 14.1 | 13.8 | 13.6 | 13.5 | 13.4 | 13.3 | 13.2 | 13.1 | 13.1 | 13.0 | 13.0 | 12.9 | 12.0 | 9.6 |
| 2C3 | 19.2 | 18.5 | 16.0 | 14.5 | 13.3 | 12.4 | 11.7 | 11.1 | 10.9 | 10.7 | 10.5 | 10.3 | — | — | — | — | — | — | — | — | — |
| 2C4 | 23.0 | 22.5 | 20.4 | 19.0 | 17.7 | 16.7 | 15.8 | 15.2 | 14.8 | 14.6 | 14.4 | 14.3 | 14.1 | 14.0 | 13.9 | 13.9 | 13.8 | 13.8 | 13.6 | 12.4 | 9.8 |
| 2C5 | 23.0 | 22.6 | 20.9 | 19.6 | 18.4 | 17.4 | 16.6 | 16.0 | 15.8 | 15.7 | 15.6 | 15.5 | 15.4 | 15.4 | 15.4 | 15.4 | 15.3 | 15.2 | 14.7 | 12.7 | 9.6 |
| 12EO | 22.2 | 21.1 | 19.6 | 18.3 | 17.2 | 16.1 | 15.1 | 14.4 | — | 13.9 | — | 13.6 | — | 13.2 | — | — | — | — | 12.8 | — | 9.6 |