液压系统油管选择
作者:2012/4/27 3:39:24

 

各管路国家标准推荐流速:

        吸油管路:  1.2~1.3  m/s                回油管路 :  1.7~4.5  m/s

 

        压力油管路:  <25 bar    2.5~3  m/s                   <50bar    3.5~4  m/s

                                     <100bar   4.5~5  m/s                    <200bar    5~6  m/s

                                     >200bar   6~7.6  m/s

 

 油泵流量与推荐油管通径表(d2=21.22Q/V)

流量

L/min

吸油管

1.2-1.3m/s

回油管

1.7-2.5m/s

<25bar

2.5-3m/s

<50bar

3.5-4m/s

<100bar

4.5-5m/s

<200bar

5-6m/s

>200bar

6-7.6m/s

5

9.4

9.0

7.9

6.5

6.5

6.0

5.5

5.2

4.8

4.6

4.6

4.2

4.2

3.7

10

13.3

12.8

11.2

9.2

9.2

8.4

7.8

7.3

6.9

6.5

6.5

6.0

6.0

5.3

15

16.3

15.6

13.7

11.3

11.3

10.3

9.5

8.9

8.4

8.0

8.0

7.3

7.3

6.5

20

18.8

18.1

15.8

13.0

13.0

11.9

11.0

10.3

9.7

9.2

9.2

8.4

8.4

7.5

30

23.0

22.1

19.4

16.0

16.0

14.6

13.5

12.6

11.9

11.3

11.3

10.3

10.3

9.2

40

26.6

25.6

22.3

18.4

18.4

16.8

15.6

14.6

13.7

13.0

13.0

11.9

11.9

10.6

50

29.7

28.6

25.0

20.6

20.6

18.8

17.4

16.3

15.4

14.6

14.6

13.3

13.3

11.8

60

32.6

31.4

27.4

22.5

22.5

20.6

19.1

17.9

16.8

16.0

16.0

14.6

14.6

12.9

70

35.2

33.9

30.0

24.4

24.4

22.3

20.6

19.3

18.2

17.2

17.2

15.7

15.7

14.0

80

37.6

36.2

31.6

26.0

26.0

23.8

22.0

20.6

19.4

18.4

18.4

16.8

16.8

14.9

90

39.9

38.4

33.5

27.6

27.6

25.3

23.4

21.9

20.6

19.5

19.5

17.8

17.8

15.9

100

42.0

40.5

35.3

29.1

29.1

26.6

24.6

23.1

21.7

20.6

20.6

18.8

18.8

16.7

110

44.1

42.5

37.0

30.5

30.5

27.9

25.8

24.2

22.8

21.6

21.6

19.7

19.7

17.5

120

46.1

44.4

38.7

31.9

31.9

29.2

27.0

25.3

23.8

22.6

22.6

20.6

20.6

18.3

130

47.9

46.2

40.3

33.2

33.2

30.4

28.1

26.3

24.8

23.5

23.5

21.4

21.4

19.0

140

49.8

47.8

41.8

34.5

34.5

31.5

29.1

27.3

25.7

24.4

24.4

22.3

22.3

19.8

150

51.5

49.5

43.3

35.7

35.7

32.6

30.2

28.2

26.6

25.2

25.2

23.0

23.0

20.5

160

53.2

51.1

44.7

36.9

36.9

33.6

31.1

29.1

27.5

26.0

26.0

23.8

23.8

21.1

170

54.8

52.7

46.1

38.0

38.0

34.6

32.1

30.0

28.3

26.9

26.9

24.5

24.5

21.8

180

56.4

54.2

47.4

39.0

39.0

35.7

33.0

30.9

29.1

27.6

27.6

25.2

25.2

22.4

190

58.0

55.7

48.7

40.2

40.2

36.7

33.9

31.7

29.9

28.4

28.4

25.9

25.9

23.0

200

59.5

57.1

50.0

41.2

41.2

37.6

34.8

32.6

30.7

29.1

29.1

26.6

26.6

23.6

220

62.4

60.0

52.4

43.2

43.2

39.4

36.5

34.2

32.2

30.6

30.6

27.9

27.9

24.8

240

65.1

62.6

54.7

45.1

45.1

41.2

38.1

35.7

33.6

31.9

31.9

29.1

29.1

25.9

260

67.8

65.1

57.0

47.0

47.0

42.9

39.7

37.1

35.0

33.2

33.2

30.3

30.3

26.9

280

70.4

67.6

59.1

48.8

48.8

44.5

41.2

38.5

36.3

34.5

34.5

31.5

31.5

28.0

300

72.8

70.0

61.2

50.5

50.5

46.1

42.6

39.9

37.6

35.7

35.7

32.6

32.6

28.9

350

78.7

75.6

66.1

54.5

54.5

49.8

46.1

43.1

40.6

38.5

38.5

35.2

35.2

31.3

400

84.1

80.8

70.7

58.3

58.3

53.2

49.2

46.1

43.4

41.2

41.2

37.6

37.6

33.4

450

89.2

85.7

74.9

61.8

61.8

56.4

52.2

48.9

46.1

43.7

43.7

39.9

39.9

35.4

500

94.0

90.3

79.0

65.1

65.1

59.5

55.1

51.5

48.6

46.1

46.1

42.0

42.0

37.4

 

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