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公称通径
Nominal
Pipe Size
外径
Outside Diameter
公称壁厚T
Norminal Wall Thickness
NPS
DN
D
SCH5s
SCH10s
SCH10
SCH20
SHC30
SCH40s
STD
SCH40
SCH60
SCH80s
XS
SCH80
SCH100
SCH120
SCH104
SCH160
XXS
1/8
1/4
3/8
6
8
10
10.3
13.7
17.1
-
-
-
1.24
1.65
1.65
-
-
-
-
-
-
-
-
-
1.73
2.24
2.31
1.73
2.24
2.31
1.73
2.24
2.31
-
-
-
2.41
3.02
3.20
2.41
3.02
3.20
2.41
3.02
3.20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1/2
3/4
1
15
20
25
21.3
26.7
33.4
1.65
1.65
1.65
2.11
2.11
2.77
-
-
-
-
-
-
-
-
-
2.77
2.87
3.38
2.77
2.87
3.38
2.77
2.87
3.38
-
-
-
3.73
3.91
4.55
3.73
3.91
4.55
3.73
3.91
4.55
-
-
-
-
-
-
-
-
-
4.78
5.56
6.35
7.47
7.82
9.09
11/4
11/2
2
32
40
50
42.2
48.3
60.3
1.65
1.65
1.65
2.77
2.77
2.77
-
-
-
-
-
-
-
-
-
3.56
3.68
3.91
3.56
3.68
3.91
3.56
3.68
3.91
-
-
-
4.85
5.08
5.54
4.85
5.08
5.54
4.85
5.08
5.54
-
-
-
-
-
-
-
-
-
6.35
7.14
8.74
9.70
10.15
11.07
21/2
3
31/2
65
80
90
73.0
88.9
101.6
2.11
2.11
2.11
3.05
3.05
3.05
-
-
-
-
-
-
-
-
-
5.16
5.49
5.74
5.16
5.49
5.74
5.16
5.49
5.74
-
-
-
7.01
7.62
8.08
7.01
7.62
8.08
7.01
7.62
8.08
-
-
-
-
-
-
-
-
-
9.53
11.13
-
14.02
15.24
-
4
5
6
100
125
150
114.3
141.3
168.3
2.11
2.77
2.77
3.05
3.40
3.40
-
-
-
-
-
-
-
-
-
6.02
6.55
7.11
6.02
6.55
7.11
6.02
6.55
7.11
-
-
-
8.56
9.53
10.97
8.56
9.53
10.97
8.56
9.53
10.97
-
-
-
11.13
12.70
14.27
-
-
-
13.49
15.88
18.26
17.12
19.05
21.95
8
10
12
200
250
300
219.1
273.1
323.9
2.77
3.40
3.96
3.76
4.19
4.57
-
-
-
6.35
6.35
6.35
7.04
7.80
8.38
8.18
9.27
9.53
8.18
9.27
9.53
8.18
9.27
10.31
10.31
12.70
14.27
12.70
12.70
12.70
12.70
12.70
12.70
12.70
15.09
17.48
15.09
18.26
21.44
18.26
21.44
25.40
20.62
25.40
28.58
23.01
28.58
33.32
22.23
25.40
25.40
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