| 公称直径 | 外径(D) | Sch | Sch | Sch | Sch | Sch |
| DN | A系列 | B系列 | 20 | 30 | 40 | 60 | 80 |
| 15 | 21.3 | 18 | - | - | 2.9 | - | 3.6 |
| 20 | 26.9 | 25 | - | - | 2.9 | - | 4 |
| 25 | 33.7 | 32 | - | - | 3.2 | - | 4.5 |
| 32 | 42.4 | 38 | - | - | 3.6 | - | 5 |
| 40 | 48.3 | 45 | - | - | 3.6 | - | 5 |
| 50 | 60.3 | 57 | 3.2 | - | 4 | - | 5.6 |
| 65 | 76.1 | 73 | 4.5 | - | 5 | - | 7.1 |
| 80 | 88.9 | 89 | 4.5 | - | 5.6 | - | 8 |
| 90 | 101.6 | - | 4.5 | - | 5.6 | - | 8 |
| 100 | 114.3 | 108 | 5 | - | 5.9 | - | 8.8 |
| 125 | 139.7 | 133 | 5 | - | 6.3 | - | 10 |
| 150 | 168.3 | 159 | 5 | - | 7.1 | - | 11 |
| 200 | 219.4 | 219 | 6.3 | 7.1 | 8 | 10 | 12.5 |
| 250 | 273 | 273 | 6.3 | 8 | 8.8 | 12.5 | 16 |
| 300 | 323.9 | 325 | 6.3 | 8.8 | 10 | 14.2 | 17.5 |
| 350 | 355.6 | 377 | 8 | 10 | 11 | 16 | 20 |
| 400 | 406.4 | 426 | 8 | 10 | 12.5 | 17.5 | 22.2 |
| 450 | 457 | 480 | 8 | 11 | 14.2 | 20 | 25 |
| 500 | 508 | 529 | 10 | 12.5 | 16 | 20 | 28 |
| 550 | 559 | - | - | - | - | - | 30 |
| 600 | 610 | 630 | - | - | 17.5 | - | 32 |
| 650 | 660 | - | - | - | - | - | - |
| 700 | 711 | 720 | - | - | - | - | - |
| 750 | 762 | - | - | - | - | - | - |
| 800 | 813 | 820 | - | - | - | - | - |
| 850 | 864 | - | - | - | - | - | - |
| 900 | 914 | 920 | - | - | - | - | - |
| 950 | 965 | - | - | - | - | - | - |
| 1000 | 1016 | 1020 | - | - | - | - | - |
| 1050 | 1067 | - | - | - | - | - | - |
| 1100 | 1118 | 1120 | - | - | - | - | - |
| 1150 | 1168 | - | - | - | - | - | - |
| 1200 | 1219 | 1220 | - | - | - | - | - |
