最大允许流速（m/s)管径（mm)金属管150200300400500600700800900100011001200130014001500>1500非金属管按照设计充满度下最小设计流速控制在设计充的最小坡度最大充满设计最大满度下最度水域面充满度小设计流积㎡相应流速速（m/s)坡度（m/s)0.0110.020.0440.0940.1580.2270.310.4040.5120.6320.7650.971.1381.321.5160.0070.0050.00270.0020.00160.00130.00110.0010.00090.00080.00070.00070.00060.00060.00060.00060.720.740.710.770.810.820.840.880.90.910.910.970.940.991.040.60.70.7≤10≤50.750.80.910.8按照最小计算满度下不淤流速控制最最小计算小坡度金属管最非金属管最小充满最小设计充满度下最小流量m³大流量m³最大流量度水域面充满度不淤流速/s/sm³/s积㎡相应流速（m/s)坡度（m/s)0.110.20.440.941.582.273.14.045.126.327.659.711.3813.215.160.0550.10.220.470.791.1351.552.022.563.163.8254.855.696.67.580.003450.006140.013890.024570.038390.071340.09710.126830.160520.198170.296430.352780.414020.480160.551210.0050.0040.0020.00150.00120.0010.00090.00080.00070.00060.00060.00060.00050.00050.00050.00050.400.430.400.420.430.500.520.540.540.540.620.660.630.670.700.001380.0024560.0055560.0098280.0153560.035670.048550.0634150.080260.0990850.1778580.2116680.2484120.2880960.3307260.250.40.30.50.350.6