公称直径
| 管道的壁厚系列
| 管道内径D/in
| 管道内径D/mm
|
DN50(2in)
| 40
80
160
| 2.067
1.939
1.689
| 52.50
49.25
42.90
|
DN80(3in)
| 40
80
160
| 3.068
2.900
2.624
| 77.93
73.66
66.70
|
DN100(4in)
| 40
80
120
160
| 4.026
3.826
3.624
3.438
| 102.26
97.18
92.05
87.33
|
DN150(6in)
| 40
80
120
160
| 6.065
5.761
5.501
5.189
| 154.1
146.3
139.7
131.8
|
DN200(8in)
| 20
30
40
60
80
120
| 8.125
8.071
7.981
7.813
7.625
7.189
| 206.4
205.0
202.7
198.5
193.7
182.6
|
DN250(10in)
| 30
40
60
80
| 10.136
10.020
9.750
9.564
| 257.5
254.5
247.7
242.9
|
DN300(12in)
| 30
40
60
80
| 12.090
11.938
11.626
11.376
| 307.1
303.2
295.3
289.0
|
DN350(14in)
| 30
40
60
80
| 13.250
13.124
12.814
12.500
| 336.6
333.4
325.5
317.5
|
DN400(16in)
| 30
40
60
80
| 15.250
15.000
14.688
14.314
| 387.4
381.0
373.1
363.6
|
DN450(18in)
| 20
30
40
60
80
| 17.376
17.124
16.876
16.500
16.126
| 441.4
435.0
428.7
419.1
409.6
|
DN500(20in)
| 20
30
40
60
80
| 19.250
19.000
18.814
18.376
17.938
| 488.9
482.6
477.9
466.8
455.6
|
DN600(24in)
| 20
30
40
60
80
| 23.250
22.876
22.626
22.064
21.564
| 590.6
581.1
574.7
560.4
|
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