| 公称直径 | 外径(D) | Sch | Sch | Sch | |
| DN | A系列 | B系列 | 5s | 10s | 20s |
| 15 | 21.3 | 18 | 1.6 | 2.1 | 2.6 |
| 20 | 26.9 | 25 | 1.6 | 2.1 | 2.6 |
| 25 | 33.7 | 32 | 1.6 | 2.8 | 3.2 |
| 32 | 42.4 | 38 | 1.6 | 2.8 | 3.2 |
| 40 | 48.3 | 45 | 1.6 | 2.8 | 3.2 |
| 50 | 60.3 | 57 | 1.6 | 2.8 | 3.6 |
| 65 | 76.1 | 73 | 2 | 3 | 3.6 |
| 80 | 88.9 | 89 | 2 | 3 | 4 |
| 90 | 101.6 | - | 2 | 3 | 4 |
| 100 | 114.3 | 108 | 2 | 3 | 4 |
| 125 | 139.7 | 133 | 2.9 | 3.4 | 4 |
| 150 | 168.3 | 159 | 2.9 | 3.4 | 4 |
| 200 | 219.4 | 219 | 2.9 | 4 | 6.3 |
| 250 | 273 | 273 | 3.6 | 4 | 6.3 |
| 300 | 323.9 | 325 | 4 | 4 | 6.3 |
| 350 | 355.6 | 377 | 4 | 5 | - |
| 400 | 406.4 | 426 | 4 | 5 | - |
| 450 | 457 | 480 | 4 | 5 | - |
| 500 | 508 | 529 | 5 | 5.6 | - |
| 550 | 559 | - | 5 | 5.6 | - |
| 600 | 610 | 630 | 5.6 | 6.3 | - |
| 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 | - | - | - |