| 公称通径 |
L |
| 50 |
120 |
| 65 |
150 |
| 80 |
180 |
| 100 |
240 |
| 125 |
300 |
| 150 |
350 |
| 200 |
450 |
| 250 |
500 |
| 300 |
550 |
| 350 |
572 |
| 400 |
600 |
| 450 |
650 |
| 500 |
| 公称通径DN(mm) |
L |
| 50 |
120 |
| 65 |
150 |
| 80 |
180 |
| 100 |
229 |
| 125 |
254 |
| 150 |
268 |
| 200 |
292 |
| 250 |
330 |
