| 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 | 18.1 | 47.2 | 94.4 | 141.6 | 236.0 | 393.3 |
| 50 | 18.1 | 47.2 | 94.4 | 141.6 | 236.0 | 393.3 |
| 100 | 17.7 | 47.2 | 94.4 | 141.6 | 236.0 | 393.3 |
| 150 | 15.8 | 47.2 | 94.4 | 141.6 | 236.0 | 393.3 |
| 200 | 13.8 | 46.3 | 92.5 | 138.8 | 231.3 | 385.6 |
| 250 | 12.1 | 44.8 | 89.6 | 134.5 | 224.1 | 373.5 |
| 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 | — | 8.8 | 17.6 | 26.4 | 44.0 | 73.4 |
| 600 | — | 6.1 | 12.1 | 18.2 | 30.3 | 50.4 |
| 625 | — | 4.0 | 8.0 | 12.0 | 20.0 | 33.3 |
| 650 | — | 2.4 | 4.7 | 7.1 | 11.8 | 19.7 |