重力流雨水悬吊管-重力流屋面雨水-重力流雨水排出管排水能力对照表

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1、第1页，共3页重力流雨水悬吊管-重力流屋面雨水-重力流雨水排出管排水能力对照表LK表4.8.6－1重力流雨水悬吊管排水能力（L/s）钢管管径DN（mm）(n=0.012)坡度801001251502002503000.0103.025.479.9216.1334.7362.97102.400.0153.696.7012.1519.7542.5477.12125.410.0204.277.7414.0322.8149.1289.05144.810.0254.778.6515.6825.5054.9199.56161.900.0305.239.4717.1827.9360.15109

2、.07177.360.0355.6410.2318.5530.1764.97117.81191.5773第1页，共3页第2页，共3页0.0406.0310.9419.8332.2569.46125.94204.790.0456.4011.6021.0434.2173.67133.58217.220.0506.7512.2322.1836.0677.66140.81228.97铸铁管管径DN（mm）(n=0.013)坡度751001251502002503000.0102.345.059.1514.8932.0658.1394.520.0152.876.1811.2118.2339

3、.2671.19115.760.0203.327.1412.9521.0545.3482.20133.670.0253.717.9814.4723.5450.6991.91149.450.0304.068.7515.8625.7855.53100.68163.710.0354.399.4517.1327.8559.98108.74176.830.0404.6910.1018.3129.7764.12116.25189.040.0454.9710.7119.4231.5868.01123.30200.510.0505.2411.2920.4733.2971.69129.97211.

4、35塑料管公称外径×壁厚（mm）(n=0.009)坡度75×2.390×3.2110×3.2160×4.0200×4.9250×6.2315×7.70.0052.204.736.1516.8830.6555.5390.080.0103.126.698.6923.8743.3478.52127.390.0153.828.1910.6529.2453.0996.17156.020.0204.419.4612.2933.7661.30111.05180.150.0254.9310.5713.7437.7568.53124.16201.420.0305.4011.5815.0541.35

5、75.08136.01220.640.0355.8312.5116.2644.6681.09146.91238.320.0406.2313.3717.3847.7586.69157.05254.770.0456.6114.1918.4450.6491.95166.58270.230.0506.9714.9519.4453.3896.92175.59284.85注：n为管段粗糙系数，充满度h/d=0.8。表4.8.6－2重力流屋面雨水排水立管的泄流量铸铁管塑料管钢管公称直径DN最大泄流量公称外径×壁厚最大泄流量公称外径×壁厚最大泄流量(mm)(L/s)(mm)(L/s)(mm)(L

6、/s)75LK5.4675×2.35.7189×4.06.7190×3.29.2210011.77108×4.011.77110×3.215.98125×3.222.9212521.34133×4.021.34125×3.722.41160×4.044.43159×4.534.6915034.69160×4.743.34168×6.038.52200×4.980.78219×6.081.9020074.72200×5.978.53245×6.0112.28250×6.2146.21250135.47273×7.0148.87250×7.3142.63315×7.7271.3430

7、0220.29325×7.0242.49315×9.2264.15表4.8.6－3重力流雨水排出管的排水能力（L/s）坡度0.0030.00350.0040.0050.0060.0070.0080.0090.010.0150.02铸铁管管径1006.327.29DN（mm）1258.879.3511.4513.22（n=0.013）15012.7213.6014.4215.2118.6221.5074第2页，共3页第3页，共3页20023.1625.3727.4029.2931.