公称
直径

15

20

25

32

40

50

65

80

100

125

150

200

管道
外径

18

25

32

38

45

57

76

89

108

133

159

219

保
温
层
厚度

10

0.1

0.1

0.1

0.2

0.2

0.2

0.3

0.3

0.4

0.4

0.5

0.7

15

0.2

0.2

0.2

0.2

0.3

0.3

0.4

0.5

0.6

0.7

0.8

1.1

20

0.3

0.3

0.3

0.4

0.4

0.5

0.6

0.7

0.8

1.0

1.1

1.5

25

0.4

0.4

0.4

0.5

0.5

0.6

0.8

0.9

1.0

1.2

1.4

1.9

30

0.5

0.5

0.6

0.6

0.7

0.8

1.0

1.1

1.3

1.5

1.8

2.3

35

0.6

0.7

0.7

0.8

0.9

1.0

1.2

1.4

1.6

1.8

2.1

2.8

40

0.8

0.9

0.9

1.0

1.1

1.2

1.4

1.6

1.9

2.2

2.5

3.3

45

0.9

1.0

1.1

1.2

1.3

1.4

1.7

1.9

2.2

2.5

2.9

3.7

50

1.1

1.2

1.3

1.4

1.5

1.7

1.9

2.2

2.5

2.9

3.3

4.2

55

1.3

1.4

1.5

1.6

1.7

1.9

2.2

2.5

2.8

3.2

3.7

4.7

60

1.5

1.7

1.7

1.8

2.0

2.2

2.5

2.8

3.2

3.6

4.1

5.3

65

1.8

1.9

2.0

2.1

2.2

2.5

2.8

3.1

3.5

4.0

4.6

5.8

70

2.0

2.2

2.2

2.4

2.5

2.8

3.1

3.5

3.9

4.5

5.0

6.4

80

2.6

2.7

2.8

3.0

3.1

3.4

3.8

4.2

4.7

5.4

6.0

7.5

90

3.2

3.3

3.4

3.6

3.8

4.2

4.6

5.1

5.6

6.3

7.0

8.7

100

3.8

4.0

4.1

4.3

4.6

4.9

5.4

5.9

6.5

7.3

8.1

10.0

120

5.4

5.6

5.7

6.0

6.2

6.7

7.3

7.9

8.6

9.5

10.5

12.8

140

7.1

7.4

7.6

7.8

8.1

8.7

9.4

10.1

10.9

12.0

13.2

15.8

160

9.1

9.4

9.7

10.0

10.3

10.9

11.7

12.5

13.5

14.7

16.0

19.1

180

11.4

11.8

12.0

12.3

12.7

13.4

14.3

15.2

16.3

17.7

19.2

22.6

200

13.9

14.3

14.6

15.0

15.4

16.1

17.2

18.2

19.4

20.9

22.6

26.3

220

16.7

17.1

17.4

17.8

18.3

19.1

20.3

21.4

22.7

24.4

26.2

30.3