| 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 | 20.0 | 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 | 50.3 | 100.3 | 150.6 | 250.8 | 418.2 |
| 200 | 13.8 | 48.6 | 97.2 | 145.8 | 243.4 | 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 | 40.3 | 80.4 | 120.7 | 201.1 | 335.3 |
| 375 | 7.4 | 38.9 | 77.6 | 116.5 | 194.1 | 323.2 |
| 400 | 6.5 | 36.5 | 73.3 | 109.8 | 183.1 | 304.9 |
| 425 | 5.5 | 35.2 | 70.0 | 105.1 | 175.1 | 291.6 |
| 450 | 4.6 | 33.7 | 67.7 | 101.4 | 169.0 | 281.8 |
| 475 | 3.7 | 27.9 | 55.7 | 83.6 | 139.3 | 232.1 |
| 500 | 2.8 | 21.4 | 42.8 | 64.1 | 106.9 | 178.2 |
| 538 | 1.4 | 13.7 | 27.4 | 41.1 | 68.6 | 114.3 |
| 550 | — | 12.0 | 24.1 | 36.1 | 60.2 | 100.4 |
| 575 | — | 8.9 | 17.8 | 26.7 | 44.4 | 74.0 |
| 600 | — | 6.2 | 12.5 | 18.7 | 31.2 | 51.9 |
| 625 | — | 4.0 | 8.0 | 12.0 | 20.0 | 33.3 |
| 650 | — | 2.4 | 4.7 | 7.1 | 11.8 | 19.7 |