液压系统油管选择
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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
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
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
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
液压系统油管选择
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)
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
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
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
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
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
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
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
3.5-4Fra Baidu bibliotek/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
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
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
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
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
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
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
液压系统油管选择
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)
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
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
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
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
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
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
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
3.5-4Fra Baidu bibliotek/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
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
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