公称直径DN

mm

K7公称壁厚

mm

K7最小壁厚

mm

80

6.0

4.7

100

6.0

4.7

125

6.0

4.7

150

6.0

4.7

200

6.0

4.7

250

6.0

4.7

300

6.0

4.7

350

6.0

4.7

400

6.3

4.6

450

6.7

5.0

500

7.0

5.2

600

7.7

5.8

700

8.4

6.4

800

9.1

7.0

900

9.8

7.6

1000

10.5

8.2

1100

11.2

8.8

1200

11.9

9.4

1400

13.3

10.6

1500

14.0

11.2

1600

14.7

11.8

1800

16.1

13.0

2000

17.5

14.2

2200

18.9

15.4

2400

20.3

16.6

2600

21.7

17.8