液压系统中油管尺寸的选择

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1、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: <25bar   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

2、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<25bar2.5-3m/s<50bar3.5-4m/s<100bar4.5-5m/s<200bar5-6m/s>200bar6-7.6m/s59.49.07.96.56.56.05.55.24.84.64.64.24.23.71013.312.811.29.29.28.47.87.36.96.56.56.06.05.31516.315.613.711.311.310.39.58.98.48.08.07.37.36.52018.818.115.813.013.011.911.010.39.79.29

3、.28.48.47.53023.022.119.416.016.014.613.512.611.911.311.310.310.39.24026.625.622.318.418.416.815.614.613.713.013.011.911.910.65029.728.625.020.620.618.817.416.315.414.614.613.313.311.86032.631.427.422.522.520.619.117.916.816.016.014.614.612.97035.233.930.024.424.422.320.619.318.217.217.215.715.714.0

4、8037.636.231.626.026.023.822.020.619.418.418.416.816.814.99039.938.433.527.627.625.323.421.920.619.519.517.817.815.910042.040.535.329.129.126.624.623.121.720.620.618.818.816.711044.142.537.030.530.527.925.824.222.821.621.619.719.717.512046.144.438.731.931.929.227.025.323.822.622.620.620.618.313047.9

5、46.240.333.233.230.428.126.324.823.523.521.421.419.014049.847.841.834.534.531.529.127.325.724.424.422.322.319.815051.549.543.335.735.732.630.228.226.625.225.223.023.020.516053.251.144.736.936.933.631.129.127.526.026.023.823.821.117054.852.746.138.038.034.632.130.028.326.926.924.524.521.818056.454.24

6、7.439.039.035.733.030.929.127.627.625.225.222.419058.055.748.740.240.236.733.931.729.928.428.425.925.923.020059.557.150.041.241.237.634.832.630.729.129.126.626.623.622062.460.052.443.243.239.436.534.232.230.630.627.927.924.824065.162.654.745.145.141.238.135.733.631.931.929.129.125.926067.865.157.047

7、.047.042.939.737.135.033.233.230.330.326.928070.467.659.148.848.844.541.238.536.334.534.531.531.528.030072.870.061.250.550.546.142.639.937.635.735.732.632.628.935078.775.666.154.554.549.846.143.140.63