| DN（mm) |
液体 |
气体 |
蒸汽 |
| 20 |
0.8-10 |
5-40 |
8-80 |
| 25 |
1-12 |
7.2-60 |
10-120 |
| 32 |
1.5-20 |
12-100 |
15-200 |
| 40 |
2-30 |
18-150 |
20-300 |
| 50 |
3-50 |
30-300 |
30-450 |
| 65 |
6-80 |
50-420 |
60-800 |
| 80 |
10-130 |
70-600 |
100-1300 |
| 100 |
20-200 |
120-1000 |
200-2000 |
| 125 |
30-300 |
180-1500 |
300-3000 |
| 150 |
45-450 |
240-2000 |
450-4500 |
| 200 |
90-900 |
480-4000 |
900-9000 |
| 250 |
120-1200 |
700-8000 |
1200-12000 |
| 300 |
180-2000 |
900-10000 |
1600-16000 |
