公称外径dn

公称压力Mpa

0.1

0.6

0.8

1.0

1.25

1.6

2.0

2.5

12

-

-

-

-

-

-

2.0

2.0

16

-

-

-

-

-

2.0

2.2

2.7

20

-

-

-

-

2.0

2.3

2.8

3.4

25

-

-

-

2.0

2.3

2.8

3.5

4.2

32

-

-

2.0

2.4

2.9

3.6

4.4

5.4

40

-

2.0

2.4

3.0

3.7

4.5

5.5

6.7

50

-

2.3

3.0

3.7

4.6

5.6

6.9

8.3

63

-

2.9

3.8

4.7

5.8

7.1

8.6

10.5

75

-

3.4

4.5

5.6

6.8

8.4

10.3

12.5

90

2.0

4.1

5.4

6.7

8.2

10.1

12.3

15.0

110

2.2

5.0

6.6

8.1

10.0

12.3

15.1

18.3

125

2.4

5.7

7.4

9.2

11.4

14.0

17.1

20.8

140

2.7

6.4

8.3

10.3

12.7

15.7

19.2

23.3

160

3.1

7.3

9.5

11.8

14.6

17.9

21.9

26.6

180

3.5

8.2

10.7

13.3

16.4

20.1

24.6

29.9

200

3.9

9.1

11.9

14.7

18.2

22.4

27.4

33.2

225

4.4

10.2

13.4

16.6

20.5

25.2

30.8

37.4

250

4.9

11.4

14.8

18.4

22.7

27.9

34.2

41.5

280

5.5

12.7

16.6

20.6

25.4

31.3

38.3

46.5

315

6.2

14.,3

18.7

23.2

28.6

35.2

43.1

52.3

355

7.0

16.1

21.1

26.1

32.2

39.7

48.5

59.0

400

7.8

18.1

23.7

29.4

36.3

44.7

54.7

-

450

8.8

20.4

26.7

33.1

40.9

50.3

61.5

-

500

9.8

22.7

29.7

36.8

45.4

55.8

-

-

560

11.0

25.4

33.2

41.2

50.8

-

-

-

630

12.3

28.6

37.4

46.3

57.2

-

-

-

710

13.9

32.3

42.1

52.2

-

-

-

-

800

15.7

36.4

47.4

58.8

-

-

-

-

注:公称压力为0.1Mpa的管材壁厚是抽放瓦斯管的专用最小壁厚，"-"表示不要求最小壁厚。