| 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 | 50.3 | 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 | 31.7 | 63.4 | 95.1 | 158.2 | 263.9 |
| 500 | 2.8 | 28.2 | 56.5 | 84.7 | 140.9 | 235.0 |
| 538 | 1.4 | 18.4 | 36.9 | 55.3 | 92.2 | 153.7 |
| 550 | — | 15.6 | 31.3 | 46.9 | 78.2 | 130.3 |
| 575 | — | 10.5 | 21.1 | 31.6 | 52.6 | 87.7 |
| 600 | — | 6.9 | 13.8 | 20.7 | 34.4 | 57.4 |
| 625 | — | 4.5 | 8.9 | 13.4 | 22.3 | 37.2 |
| 650 | — | 2.8 | 5.7 | 8.5 | 14.2 | 23.6 |