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          液压元件应用行业实例 液压成套系统成功案例 液压系统管路设计选择 液压系统故障及排除 液压系统维护保养 常用单位换算表

          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)

          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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