水管管径流速流量对照表
.
. 管径/流速/流量对照表
管径(DN) 流量 m3/h
0.4m/s 0.6m/s 0.8m/s 1.0m/s 1.2m/s 1.4m/s 1.6m/s 1.8m/s 2.0m/s 2.2m/s 2.4m/s 2.6m/s 2.8m/s 3.0m/s
20 0.5 0.7 0.9 1.1 1.4 1.6 1.8 2.0 2.3 2.5 2.7 2.9 3.2 3.4
25 0.7 1.1 1.4 1.8 2.1 2.5 2.8 3.2 3.5 3.9 4.2 4.6 4.9 5.3
32 1.2 1.7 2.3 2.9 3.5 4.1 4.6 5.2 5.8 6.4 6.9 7.5 8.1 8.7
40 1.8 2.7 3.6 4.5 5.4 6.3 7.2 8.1 9.0 10.0 10.9 11.8 12.7 13.6
50 2.8 4.2 5.7 7.1 8.5 9.9 11.3 12.7 14.1 15.6 17.0 18.4 19.8 21.2
65 4.8 7.2 9.6 11.9 14.3 16.7 19.1 21.5 23.9 26.3 28.7 31.1 33.4 35.8
80 7.2 10.9 14.5 18.1 21.7 25.3 29.0 32.6 36.2 39.8 43.4 47.0 50.7 54.3
100 11.3 17.0 22.6 28.3 33.9 39.6 45.2 50.9 56.5 62.2 67.9 73.5 79.2 84.8
125 17.7 26.5 35.3 44.2 53.0 61.9 70.7 79.5 88.4 97.2 106.0 114.9 123.7 132.5
150 25.4 38.2 50.9 63.6 76.3 89.1 101.8 114.5 127.2 140.0 152.7 165.4 178.1 190.9
200 45.2 67.9 90.5 113.1 135.7 158.3 181.0 203.6 226.2 248.8 271.4 294.1 316.7 339.3
250 70.7 106.0 141.4 176.7 212.1 247.4 282.7 318.1 353.4 388.8 424.1 459.5 494.8 530.1
300 101.8 152.7 203.6 254.5 305.4 356.3 407.1 458.0 508.9 559.8 610.7 661.6 712.5 763.4
350 138.5 207.8 277.1 346.4 415.6 484.9 554.2 623.4 692.7 762.0 831.3 900.5 969.8 1039.1
400 181.0 271.4 361.9 452.4 542.9 633.3 723.8 814.3 904.8 995.3 1085.7 1176.2 1266.7 1357.2
450 229.0 343.5 458.0 572.6 687.1 801.6 916.1 1030.6 1145.1 1259.6 1374.1 1488.6 1603.2 1717.7
500 282.7 424.1 565.5 706.9 848.2 989.6 1131.0 1272.3 1413.7 1555.1 1696.5 1837.8 1979.2 2120.6 .
. 600 407.1 610.7 814.3 1017.9 1221.4 1425.0 1628.6 1832.2 2035.7 2239.3 2442.9 2646.5 2850.0 3053.6
管径(DN) 流速推荐值m/s:
20 25 32 40 50 65 80 100 125 150 200 250 300 350 400
闭式系统 0.5-0.6 0.6-0.7 0.7-0.9 0.8-1 0.9-1.2 1.1-1.4 1.2-1.6 1.3-1.8 1.5-2.0 1.6-2.2 1.8-2.5 1.8-2.6 1.9-2.9 1.6-2.5 1.8-2.6
开式系统 0.4-0.5 0.5-0.6 0.6-0.8 0.7-0.9 0.8-1.0 0.9-1.2 1.1-1.4 1.2-1.6 1.4-1.8 1.5-2.0 1.6-2.3 1.7-2.4 1.7-2.4 1.6-2.1 1.8-2.3
水管管径-流速-流量对照表新 - 副本
0.4m/s0.6m/s0.8m/s1.0m/s1.2m/s1.4m/s1.6m/s1.8m/s2.0m/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s
200.50.70.91.11.41.61.82.02.32.52.72.93.23.4
250.71.11.41.82.12.52.83.23.53.94.24.64.95.3
321.21.72.32.93.54.14.65.25.86.46.97.58.18.7
401.82.73.64.55.46.37.28.19.010.010.911.812.713.6
502.84.25.77.18.59.911.312.714.115.617.018.419.821.2
654.87.29.611.914.316.719.121.523.926.328.731.133.435.8
807.210.914.518.121.725.329.032.636.239.843.447.050.754.3
10011.317.022.628.333.939.645.250.956.562.267.973.579.284.8
12517.726.535.344.253.061.970.779.588.497.2106.0114.9123.7132.5
15025.438.250.963.676.389.1101.8114.5127.2140.0152.7165.4178.1190.9
20045.267.990.5113.1135.7158.3181.0203.6226.2248.8271.4294.1316.7339.3
25070.7106.0141.4176.7212.1247.4282.7318.1353.4388.8424.1459.5494.8530.1
300101.8152.7203.6254.5305.4356.3407.1458.0508.9559.8610.7661.6712.5763.4
流速流量对照表
流速流量对照表
公称通径DN
(mm) 流速 (m/s)
0.01 0.10 0.30 0.50 1.00 2.00 3.00 4.00 5.00 10.00
流量 (m³/h)
10 0.00283 0.02827 0.08482 0.14137 0.28274 0.56549 0.84823 1.13097 1.41372 2.82743
15 0.00636 0.06362 0.19085 0.31809 0.63617 1.27235 1.90852 2.54469 3.18086 6.36173
20 0.01131 0.11309 0.33929 0.56549 1.13097 2.26195 3.39292 4.52389 5.65487 11.3097
25 0.01767 0.17672 0.53014 0.88357 1.76715 3.53429 5.30144 7.06858 8.83573 17.6715
32 0.02895 0.28953 0.86859 1.44765 2.89529 5.79058 8.68588 11.5812 14.4765 28.9529
40 0.04524 0.45239 1.35717 2.26195 4.52389 9.04779 13.5717 18.0956 22.6195 45.2389
50 0.07069 0.70687 2.12058 3.53429 7.06858 14.1372 21.2058 28.2743 35.3429 70.6858
65 0.11945 1.19459 3.58377 5.97295 11.9459 23.8918 35.8377 47.7836 59.7295 119.459
80 0.18096 1.80956 5.42867 9.04779 18.0956 36.1911 54.2867 72.3823 90.4779 180.956
管径-流速-流量对照表
管径/流速/流量对照表
已知流量、管材，如何求管径？
分两种情形：
1、水源水压末定，根据合理流速V（或经济流速）确定管径d：
d=√[4q/(πV)] (根据计算数值，靠近选取标准管径）
2、已知管道长度及两端压差，确定管径
流量q不但与管内径d有关，还与单位长度管道的压力降落（压力坡度）
i有关, i=(P1-P2)/L.具体关系式可以推导如下：
管道的压力坡度可用舍维列夫公式计算 i=0.0107V^2/d^1.3——（1）
管道的流量 q=(πd^2/4)V ——（2）
上二式消去流速V得： q = 7.59d^2.65√i (i 以kPa/m为单位）
管径：d=0.4654q^0.3774/i^0.1887 (d 以m为单位）
这就是已知管道的流量、压力坡度求管径的公式。
例：某管道长100m，管道起端压力P1=96kPa，末端压力P2=20kPa，要
求管道过1.31 L/s的流量，试确定管径压力坡度 i=(P1-P2)/L=(96-20)/100=0.76kPa/m
流量 q=1.31 L/s=0.00131 m^3/s
管径 d=0.4654q^0.3774/i^0.1887 =0.4654*0.00131^0.3774/0.76^0.1887=
0.0400m =400mm
还可用海森威廉公式：i=105C^(-1.85)q ^1.85/d^4.87 ( i 单位为 kPa/m )
钢管、铸铁管：C=100， i=0.02095q ^1.85/d^4.87 ，q =8.08d^2.63 i
^0.54
铜管、不锈钢管：C=130，i=0.01289q ^1.85/d^4.87 ，q =10.51d^2.63 i
^0.54
塑料管： C=140，i=0.01124q ^1.85/d^4.87 ，q =11.31d^2.63 i
^0.54
C=150，i=0.009895q ^1.85/d^4.87 ，q =12.12d^2.63 i ^0.54
水管管径及流量对照表
管徑流速及流量對照表單位：M3/HRPCW ： 2.2 ~ 2.5 m/sec管徑規格英吋管徑尺寸M0.6m/s0.8m/s1.0m/s1.2m/s1.5m/s1.8m/s2.0m/s2.2m/s2.5m/s2.7m/s3.0m/s10A (3/8")0.0130.2870.3820.478 0.573 0.717 0.860 0.956 1.05 1.19 1.29 1.43 15A (1/2")0.0160.4340.5790.724 0.869 1.09 1.30 1.45 1.59 1.81 1.95 2.17 20A (3/4")0.020.6790.9051.13 1.36 1.70 2.04 2.26 2.49 2.83 3.05 3.39 25A (1")0.0251.061.411.77 2.12 2.65 3.18 3.53 3.89 4.42 4.77 5.30 32A (1 1/4")0.0352.082.773.46 4.16 5.20 6.23 6.93 7.62 8.66 9.35 10.4 40A (1 1/2")0.042.713.624.52 5.43 6.79 8.14 9.05 9.95 11.3 12.2 13.6 50A (2") 0.0514.415.887.35 8.82 11.0 13.2 14.7 16.2 18.4 19.9 22.1 65A (2 1/2")0.0677.6210.212.7 15.2 19.0 22.8 25.4 27.9 31.7 34.3 38.1 80A (3")0.07810.313.817.2 20.6 25.8 31.0 34.4 37.8 43.0 46.4 51.6 100A (4")0.117.022.628.3 33.9 42.4 50.9 56.5 62.2 70.7 76.3 84.8 125A (5")0.12526.535.344.2 53.0 66.3 79.5 88.4 97.2 110119 133 150A (6")0.14837.249.561.9 74.3 92.9 111 124 136 155167 186 200A (8")0.19564.586.0108 129 161 194 215 237 269290 323 250A (10")0.24198.5131164 197 246 296 328 361 411443 493 300A (12")0.287140186233 279 349 419 466 512 582629 699 350A (14")0.334189252315 379 473 568 631 694 789852 946 400A (16")0.396266355443 532 665 798 887 975 11081,197 1,330 450A (18")0.424305407508 610 762 915 1,017 1,118 12711,372 1,525 500A (20")0.468372495619 743 929 1,115 1,239 1,362 15481,672 1,858 600A (24")0.59591787984 1,181 1,476 1,772 1,968 2,165 24612,657 2,953 ※一般動力流設計流速：1.6 M/S ~ 2.0 M/S 另 ：氣體流速參考CDA ： 10 ~ 13 m/secN2 ： 12 ~ 15 m/secVAC ： 8 m/sec
工程-镀锌钢管管径流量流速对照表202x
镀锌钢管管径流量流速对照表
管径
（DN) 流量m3/h
0.4m/s 0.6m/s 0.8m/s 1.0m/s 1.2m/s 1.4m/s 1.6m/s 1.8m/s 2.0m/s 2.2m/s 2.4m/s 2.6m/s 2.8m/s 3.0m/s
20 0.5 0.7 0.9 1.1 1.4 1.6 1.8 2.0 2.3 2.5 2.7 2.9 3.2 3.4
25 0.7 1.1 1.4 1.8 2.1 2.5 2.8 3.2 3.5 3.9 4.2 4.6 4.9 5.3
32 1.2 1.7 2.3 2.9 3.5 4.1 4.6 5.2 5.8 6.4 6.9 7.5 8.1 8.7
40 1.8 2.7 3.6 4.5 5.4 6.3 7.2 8.2 9.0 10.0 10.9 11.8 12.7 13.6
50 2.8 4.2 5.7 7.1 8.5 9.9 11.3 12.2 14.1 15.6 17.0 18.4 19.8 21.2
65 4.8 7.2 9.6 11.9 14.3 16.7 19.1 21.5 23.9 26.8 28.7 31.1 33.4 35.8
80 7.2 10.9 14.5 18.1 21.7 25.3 29.0 32.6 36.2 39.8 43.4 47.0 50.7 54.3
100 11.3 17.0 22.6 28.3 33.9 39.6 45.2 50.9 56.5 62.2 67.9 73.5 79.2 84.8
125 17.7 26.5 35.3 44.2 53.0 61.9 70.7 79.5 88.4 97.2 106.0 114.9 123.7 132.5
150 25.4 38.2 50.9 63.6 76.3 89.1 101.8 114.5 127.2 140.0 152.7 165.4 178.1 190.9
水管管径流速流量表
0.4m/s0.6m/s0.8m/s1.0m/s1.2m/s1.4m/s1.6m/s1.8m/s2.0m/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s200.50.70.91.11.41.61.82.02.32.52.72.93.23.4250.71.11.41.82.12.52.83.23.53.94.24.64.95.3321.21.72.32.93.54.14.65.25.86.46.97.58.18.7401.82.73.64.55.46.37.28.19.010.010.911.812.713.6502.84.25.77.18.59.911.312.714.115.617.018.419.821.2654.87.29.611.914.316.719.121.523.926.328.731.133.435.8807.210.914.518.121.725.329.032.636.239.843.447.050.754.310011.317.022.628.333.939.645.250.956.562.267.973.579.284.812517.726.535.344.253.061.970.779.588.497.2106.0114.9123.7132.515025.438.250.963.676.389.1101.8114.5127.2140.0152.7165.4178.1190.920045.267.990.5113.1135.7158.3181.0203.6226.2248.8271.4294.1316.7339.325070.7106.0141.4176.7212.1247.4282.7318.1353.4388.8424.1459.5494.8530.1300101.8152.7203.6254.5305.4356.3407.1458.0508.9559.8610.7661.6712.5763.4350138.5207.8277.1346.4415.6484.9554.2623.4692.7762.0831.3900.5969.81039.1400181.0271.4361.9452.4542.9633.3723.8814.3904.8995.31085.71176.21266.71357.2450229.0343.5458.0572.6687.1801.6916.11030.61145.11259.61374.11488.61603.21717.7500282.7424.1565.5706.9848.2989.61131.01272.31413.71555.11696.51837.81979.22120.6600407.1610.7814.31017.91221.41425.01628.61832.22035.72239.32442.92646.52850.03053.6
水管管径-流速-流量对照表
0.4m/s0.6m/s0.8m/s1.0m/s1.2m/s1.4m/s1.6m/s1.8m/s2.0m/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s200.50.70.91.11.41.61.82.02.32.52.72.93.23.4
250.71.11.41.82.12.52.83.23.53.94.24.64.95.3
321.21.72.32.93.54.14.65.25.86.46.97.58.18.7
401.82.73.64.55.46.37.28.19.010.010.911.812.713.6
502.84.25.77.18.59.911.312.714.115.617.018.419.821.2
654.87.29.611.914.316.719.121.523.926.328.731.133.435.8
807.210.914.518.121.725.329.032.636.239.843.447.050.754.3
10011.317.022.628.333.939.645.250.956.562.267.973.579.284.8
12517.726.535.344.253.061.970.779.588.497.2106.0114.9123.7132.5
15025.438.250.963.676.389.1101.8114.5127.2140.0152.7165.4178.1190.9
20045.267.990.5113.1135.7158.3181.0203.6226.2248.8271.4294.1316.7339.3
25070.7106.0141.4176.7212.1247.4282.7318.1353.4388.8424.1459.5494.8530.1
300101.8152.7203.6254.5305.4356.3407.1458.0508.9559.8610.7661.6712.5763.4
管径流速流量对照表
管径/流速/流量对照表
管径(DN) 流量 m3/h
0.4m/s 0.6m/s 0.8m/s 1.0m/s 1.2m/s 1.4m/s 1.6m/s 1.8m/s 2.0m/s 2.2m/s 2.4m/s 2.6m/s 2.8m/s 3.0m/s 20 0.5 0.7 0.9 1.1 1.4 1.6 1.8 2.0 2.3 2.5 2.7 2.9 3.2 3.4 25 0.7 1.1 1.4 1.8 2.1 2.5 2.8 3.2 3.5 3.9 4.2 4.6 4.9 5.3 32 1.2 1.7 2.3 2.9 3.5 4.1 4.6 5.2 5.8 6.4 6.9 7.5 8.1 8.7 40 1.8 2.7 3.6 4.5 5.4 6.3 7.2 8.1 9.0 10.0 10.9 11.8 12.7 13.6 50 2.8 4.2 5.7 7.1 8.5 9.9 11.3 12.7 14.1 15.6 17.0 18.4 19.8 21.2 65 4.8 7.2 9.6 11.9 14.3 16.7 19.1 21.5 23.9 26.3 28.7 31.1 33.4 35.8 80 7.2 10.9 14.5 18.1 21.7 25.3 29.0 32.6 36.2 39.8 43.4 47.0 50.7 54.3 100 11.3 17.0 22.6 28.3 33.9 39.6 45.2 50.9 56.5 62.2 67.9 73.5 79.2 84.8 125 17.7 26.5 35.3 44.2 53.0 61.9 70.7 79.5 88.4 97.2 106.0 114.9 123.7 132.5 150 25.4 38.2 50.9 63.6 76.3 89.1 101.8 114.5 127.2 140.0 152.7 165.4 178.1 190.9 200 45.2 67.9 90.5 113.1 135.7 158.3 181.0 203.6 226.2 248.8 271.4 294.1 316.7 339.3 250 70.7 106.0 141.4 176.7 212.1 247.4 282.7 318.1 353.4 388.8 424.1 459.5 494.8 530.1 300 101.8 152.7 203.6 254.5 305.4 356.3 407.1 458.0 508.9 559.8 610.7 661.6 712.5 763.4 350 138.5 207.8 277.1 346.4 415.6 484.9 554.2 623.4 692.7 762.0 831.3 900.5 969.8 1039.1 400 181.0 271.4 361.9 452.4 542.9 633.3 723.8 814.3 904.8 995.3 1085.7 1176.2 1266.7 1357.2 450 229.0 343.5 458.0 572.6 687.1 801.6 916.1 1030.6 1145.1 1259.6 1374.1 1488.6 1603.2 1717.7 500 282.7 424.1 565.5 706.9 848.2 989.6 1131.0 1272.3 1413.7 1555.1 1696.5 1837.8 1979.2 2120.6 600 407.1 610.7 814.3 1017.9 1221.4 1425.0 1628.6 1832.2 2035.7 2239.3 2442.9 2646.5 2850.0 3053.6
水管管径流速流量对照表
水管管径流速流量对照表(共2页)
--本页仅作为文档封面，使用时请直接删除即可--
--内页可以根据需求调整合适字体及大小-- 管径/流速/流量对照表
管径(DN) 流量 m3/h
s s s s s s s s s s s s s s
20
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500 600
管径(DN) 流速推荐值m/s:
20 25 32 40 50 65 80 100 125 150 200 250 300 350 400
闭式系统
开式系统
水管管径-流速-流量对照表 2
0.4m/s0.6m/s0.8m/s1.0m/s1.2m/s1.4m/s1.6m/s1.8m/s2.0m/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s200.50.70.91.11.41.61.82.02.32.52.72.93.23.4
250.71.11.41.82.12.52.83.23.53.94.24.64.95.3
321.21.72.32.93.54.14.65.25.86.46.97.58.18.7
401.82.73.64.55.46.37.28.19.010.010.911.812.713.6
502.84.25.77.18.59.911.312.714.115.617.018.419.821.2
654.87.29.611.914.316.719.121.523.926.328.731.133.435.8
807.210.914.518.121.725.329.032.636.239.843.447.050.754.3
10011.317.022.628.333.939.645.250.956.562.267.973.579.284.8
12517.726.535.344.253.061.970.779.588.497.2106.0114.9123.7132.5
15025.438.250.963.676.389.1101.8114.5127.2140.0152.7165.4178.1190.9
20045.267.990.5113.1135.7158.3181.0203.6226.2248.8271.4294.1316.7339.3
25070.7106.0141.4176.7212.1247.4282.7318.1353.4388.8424.1459.5494.8530.1
300101.8152.7203.6254.5305.4356.3407.1458.0508.9559.8610.7661.6712.5763.4