铜管的外形尺寸 Outside dimensions of copper pipes
|
公称通径
DN
|
钢管外径(mm)
|
壁厚T(mm)
|
|
DWⅠ
|
DWⅡ
|
DWⅢ
|
A类
|
B类
|
C类
|
|
4
|
6
|
6
|
6
|
1.0
|
0.8
|
0.6
|
|
6
|
8
|
8
|
8
|
1.0
|
0.8
|
0.6
|
|
8
|
10
|
10
|
10
|
1.0
|
0.8
|
0.6
|
|
10
|
12
|
12
|
12
|
1.2
|
0.8
|
0.6
|
|
15
|
15
|
15
|
16
|
1.2
|
1.0
|
0.7
|
|
-
|
19
|
18
|
19
|
1.2
|
1.0
|
0.8
|
|
20
|
22
|
22
|
22
|
1.5
|
1.2
|
0.9
|
|
25
|
28
|
28
|
28
|
1.5
|
1.2
|
0.9
|
|
32
|
35
|
35
|
35
|
2.0
|
1.5
|
1.2
|
|
40
|
42
|
42
|
44
|
2.0
|
1.5
|
1.2
|
|
50
|
54
|
54
|
55
|
2.5
|
2.0
|
1.2
|
|
65
|
67
|
67(76)
|
70
|
2.5
|
2.0
|
1.5
|
|
90
|
76
|
89
|
85
|
2.5
|
2.0
|
1.5
|
|
100
|
108
|
108
|
105
|
3.5
|
2.5
|
1.5
|
|
125
|
133
|
133
|
133
|
3.5
|
2.5
|
1.5
|
|
150
|
159
|
159
|
159
|
4.0
|
3.5
|
2.0
|
|
200
|
219
|
219
|
219
|
6.0
|
5.0
|
4.0
|
|
250
|
273
|
273(267)
|
273
|
7.5
|
5.8
|
5.0
|
|
300
|
325
|
325
|
325
|
8.0
|
6.5
|
5.5
|
|
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