单位为毫米
公称尺寸 DN |
灰铸铁 |
可锻铸铁 |
球墨铸铁 |
||
PN10 |
PN10 |
PN16 |
PN16 |
PN25 |
|
15 |
4 |
3 |
3 |
3 |
4 |
20 |
4.5 |
3 |
3.5 |
3.5 |
4.5 |
25 |
5 |
3.5 |
4 |
4 |
5 |
32 |
5.5 |
4 |
4.5 |
4.5 |
5.5 |
40 |
6 |
4.5 |
5 |
5 |
6 |
50 |
6 |
5 |
5.5 |
5.5 |
6.5 |
65 |
6.5 |
6 |
6 |
6 |
7 |
80 |
7 |
6.5 |
6.5 |
6.5 |
7.5 |
100 |
7.5 |
6.5 |
7.5 |
7 |
8 |
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