英寸in. | DN |
1/2 | 15 |
3/4 | 20 |
1 | 25 |
11/4 | 32 |
11/2 | 40 |
2 | 50 |
21/2 | 65 |
3 | 80 |
4 | 100 |
5 | 125 |
6 | 150 |
8 | 200 |
10 | 250 |
12 | 300 |
14 | 350 |
16 | 400 |
18 | 450 |
20 | 500 |
24 | 600 |
26 | 650 |
28 | 700 |
30 | 750 |
32 | 800 |
34 | 850 |
36 | 900 |
40 | 1000 |
42 | 1050 |
48 | 1200 |
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