一、主要尺寸
| 公称通径 DN |
D | D2 | 结构长度L | |
| 1.6 | 1.6—4.0 | |||
| 40 | 45 | 89 | 450 | 460 |
| 50 | 57 | 108 | 510 | 500 |
| 65 | 73 | 133 | 600 | 600 |
| 80 | 89 | 219 | 620 | 640 |
| 100 | 108 | 219 | 720 | 770 |
| 125 | 133 | 273 | 820 | 900 |
| 150 | 159 | 325 | 920 | 1000 |
| 200 | 219 | 426 | 1200 | 1250 |
| 250 | 273 | 529 | 1650 | 1600 |
| 300 | 325 | 630 | 1700 | 1900 |
| 350 | 377 | 720 | 1800 | 2200 |
| 400 | 426 | 820 | 2100 | 2400 |