公称直径DN
mm
K8公称壁厚
K8最小壁厚
80
6.0
4.7
100
125
150
200
250
300
6.4
4.8
350
6.8
5.2
400
7.2
5.5
450
7.6
5.9
500
8.0
6.2
600
8.8
6.9
700
9.6
800
10.4
8.3
900
11.2
9.0
1000
12.0
9.7
1100
12.8
1200
13.6
11.1
1400
15.2
12.5
1500
16.0
13.2
1600
16.8
13.9
1800
18.4
15.3
2000
20.0
16.7
2200
21.6
18.1
2400
23.2
19.5
2600
24.8
20.9
