HG20593-1997化工部-板式平焊法兰PL理论重重
| 公称通径DN | 公称压力PN-Mpa |
| 0.25 | 0.6 | 1 | 1.6 | 2.5 |
| 10 | 0.36 | 0.36 | 0.61 | 0.61 | 0.61 |
| 15 | 0.41 | 0.41 | 0.68 | 0.68 | 0.68 |
| 20 | 0.6 | 0.6 | 0. 94 | 0.94 | 0.94 |
| 25 | 0.73 | 0.73 | 1.12 | 1.12 | 1.12 |
| 32 | 1.19 | 1.19 | 1.86 | 1.86 | 1.86 |
| 40 | 1.38 | 1.38 | 2.12 | 2.12 | 2.12 |
| 50 | 1.51 | 1.51 | 2.77 | 2.77 | 2.77 |
| 65 | 1.85 | 1.85 | 3.31 | 3.31 | 3.46 |
| 80 | 2.94 | 2.94 | 3.59 | 3.59 | 4.31 |
| 100 | 3.41 | 3.41 | 4.57 | 4.57 | 6.29 |
| 125 | 4.53 | 4.53 | 5.65 | 5.65 | 8.5 |
| 150 | 5.14 | 5.14 | 7.61 | 7.61 | 10.8 |
| 200 | 6.85 | 6.85 | 9.24 | 9.69 | 14.2 |
| 250 | 8.96 | 8.96 | 11.9 | 13.8 | 20.2 |
| 300 | 11.9 | 11.9 | 14.6 | 18.9 | 26.5 |
| 350 | 14.3 | 14.3 | 18.9 | 24.7 | 37.6 |
| 400 | 17.1 | 17.1 | 24.4 | 32.1 | 50.7 |
| 450 | 20.5 | 20.5 | 27.9 | 40.5 | 57.8 |
| 500 | 23.7 | 23.7 | 34.9 | 57.6 | 76.2 |
| 600 | 33.7 | 33.7 | 48.1 | 88.2 | 117 |
| 700 | 44.2 | 49.1 |
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| 800 | 58.6 | 67.8 |
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| 900 | 69.1 | 82.9 |
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| 1000 | 79.4 | 98.3 |
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| 1200 | 98.6 | 163.1 |
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| 1400 | 124. 4 | 244.1 |
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| 1600 | 166.8 | 309 |
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| 1800 | 197.5 | 408 |
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| 2000 | 234.6 | 538 |
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