| 工作温度（℃） | 最大允许工作压力（bar） | |||||
| Class150 (PN20) | Class300 (PN50) | Class600 (PN110) | Class900 (PN150) | Class1500 (PN260) | Class2500 (PN420) | |
| ≤38 | 19.8 | 51.7 | 103.4 | 155.1 | 258.6 | 430.9 |
| 50 | 19.5 | 51.7 | 103.4 | 155.1 | 258.6 | 430.9 |
| 100 | 17.7 | 51.5 | 103.0 | 154.6 | 257.6 | 429.4 |
| 150 | 15.8 | 50.2 | 100.3 | 150.5 | 250.8 | 418.1 |
| 200 | 13.8 | 48.6 | 97.2 | 145.8 | 243.2 | 405.4 |
| 250 | 12.1 | 46.3 | 92.7 | 139.0 | 231.8 | 386.2 |
| 300 | 10.2 | 42.9 | 85.7 | 128.6 | 214.4 | 357.1 |
| 325 | 9.3 | 41.4 | 82.6 | 124.0 | 206.6 | 344.3 |
| 350 | 8.4 | 40.0 | 80.0 | 120.1 | 200.1 | 333.5 |
| 375 | 7.4 | 37.8 | 75.7 | 113.5 | 189.2 | 315.3 |
| 400 | 6.5 | 34.7 | 69.4 | 104.2 | 173.6 | 289.3 |
| 425 | 5.5 | 28.8 | 57.5 | 86.3 | 143.8 | 239.7 |
| 450 | 4.6 | 23.0 | 46.0 | 69.0 | 115.0 | 191.7 |
| 475 | 3.7 | 17.1 | 34.2 | 51.3 | 85.4 | 142.4 |
| 500 | 2.8 | 11.6 | 23.2 | 34.7 | 57.9 | 96.5 |
| 538 | 1.4 | 5.9 | 11.8 | 17.7 | 29.5 | 49.2 |