|
인치 |
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 |
