公称外径

mm

公称压力

MPa

0.6

0.8

1.0

1.25

1.6

最小壁厚

mm

50

—

2.4

2.9

3.6

4.5

63

2.3

3.0

3.7

4.6

5.7

75

2.7

3.6

4.4

5.4

6.8

90

3.2

4.3

5.3

6.5

8.2

110

4.0

5.3

6.5

8.0

10.0

125

4.5

6.0

7.4

9.0

11.4

140

5.0

6.7

8.2

10.1

12.7

160

5.8

7.7

9.4

11.6

14.5

180

6.5

8.6

10.6

13.0

16.4

200

7.2

9.5

11.8

14.5

18.2

225

8.1

10.7

13.2

16.3

20.4

250

9.0

11.9

14.7

18.1

22.7

280

10.1

13.3

16.5

20.3

25.4

315

11.3

15.0

18.5

22.8

28.6

355

12.8

16.9

20.9

25.7

32.2

400

14.4

19.0

23.5

29.0

36.4

450

16.2

21.4

26.5

32.6

40.9

500

18.0

23.8

29.4

36.2

45.4