水系统管径流速流量对照表
管径 流量流速
0.10.110.180.290.450.71 1.19 1.81 2.83 4.42 6.3611.3117.6725.4534.6445.2457.2670.69101.790.20.230.350.580.90 1.41 2.39 3.62 5.658.8412.7222.6235.3450.8969.2790.48114.51141.37203.580.30.340.530.87 1.36 2.12 3.58 5.438.4813.2519.0933.9353.0176.34103.91135.72171.77212.06305.360.40.450.71 1.16 1.81 2.83 4.787.2411.3117.6725.4545.2470.69101.79138.54180.96229.02282.74407.150.50.570.88 1.45 2.26 3.53 5.979.0514.1422.0931.8156.5588.36127.23173.18226.19286.28353.43508.940.60.68 1.06 1.74 2.71 4.247.1710.8616.9626.5138.1767.86106.03152.68207.82271.43343.53424.12610.730.70.79 1.24 2.03 3.17 4.958.3612.6719.7930.9344.5379.17123.70178.13242.45316.67400.79494.80712.510.80.90 1.41 2.32 3.62 5.659.5614.4822.6235.3450.8990.48141.37203.58277.09361.91458.04565.49814.300.9 1.02 1.59 2.61 4.07 6.3610.7516.2925.4539.7657.26101.79159.04229.02311.72407.15515.30636.17916.091 1.13 1.77 2.90 4.527.0711.9518.1028.2744.1863.62113.09176.71254.47346.36452.39572.56706.861017.881.1 1.24 1.94 3.18 4.987.7813.1419.9131.1048.6069.98124.41194.39279.92381.00497.63629.81777.541119.661.2 1.36 2.12 3.47 5.438.4814.3421.7133.9353.0176.34135.72212.06305.36415.63542.87687.07848.231221.451.30 1.47 2.30 3.76 5.889.1915.5323.5236.7657.4382.70147.03229.73330.81450.27588.11744.32918.921323.241.40 1.58 2.47 4.05 6.339.9016.7225.3339.5861.8589.06158.34247.40356.26484.90633.35801.58989.601425.031.50 1.70 2.65 4.34 6.7910.6017.9227.1442.4166.2795.43169.65265.07381.70519.54678.58858.831060.291526.811.60 1.81 2.83 4.637.2411.3119.1128.9545.2470.69101.79180.96282.74407.15554.18723.82916.091130.971628.601.70 1.92 3.00 4.927.6912.0220.3130.7648.0775.10108.15192.27300.41432.60588.81769.06973.341201.661730.391.80 2.04 3.18 5.218.1412.7221.5032.5750.8979.52114.51203.58318.09458.04623.45814.301030.601272.351832.181.90 2.15 3.36 5.508.6013.4322.7034.3853.7283.94120.87214.88335.76483.49658.09859.541087.851343.031933.962.00 2.26 3.53 5.799.0514.1423.8936.1956.5588.36127.23226.19353.43508.94692.72904.781145.111413.722035.752.10 2.38 3.71 6.089.5014.8425.0938.0059.3892.78133.60237.50371.10534.38727.36950.021202.371484.402137.542.20 2.49 3.89 6.379.9515.5526.2839.8162.2097.19139.96248.81388.77559.83761.99995.261259.621555.092239.332.30 2.60 4.06 6.6610.4016.2627.4841.6265.03101.61146.32260.12406.44585.28796.631040.501316.881625.772341.112.40
2.71
4.24
6.95
10.86
16.96
28.67
43.43
67.86
106.03
152.68
271.43
424.12
610.73
831.27
1085.73
1374.13
1696.46
2442.90
500
600
400
450
300
350
250
150
100
65
32
40
20
25
管径/流速/流量对照表1 青岛奥特斯机电系统工程有限公司
管径单位：DN 流速单位：m/s 流量单位：m 3/h 圆周率（π）：3.1415926
管 道 管 径 规 格 大 小（DN）
50
80
125
200
管径 流量流速
2.50 2.83 4.427.2411.3117.6729.8645.2470.69110.45159.04282.74441.79636.17865.901130.971431.391767.152544.692.60 2.94 4.597.5311.7618.3831.0647.057
3.5111
4.8616
5.40294.05459.46661.62900.54117
6.211488.64183
7.832646.482.70 3.05 4.777.8212.2119.0932.254
8.8676.3411
9.28171.77305.36477.13687.07935.171221.451545.901908.522748.272.80 3.17 4.958.1112.6719.7933.4550.6779.17123.70178.13316.67494.80712.51969.811266.691603.151979.202850.052.90 3.28 5.128.4013.1220.5034.6452.4882.00128.12184.49327.98512.47737.961004.451311.931660.412049.892951.843.00 3.39 5.308.6913.5721.2135.8454.2984.82132.54190.85339.29530.14763.411039.081357.171717.672120.583053.633.1 3.51 5.488.9814.0221.9137.0356.1087.65136.95197.21350.60547.82788.851073.721402.411774.922191.263155.423.2 3.62 5.659.2614.4822.6238.2357.9190.48141.37203.58361.91565.49814.301108.351447.651832.182261.953257.203.3 3.73 5.839.5514.9323.3339.4259.7293.31145.79209.94373.22583.16839.751142.991492.881889.432332.633358.993.4 3.85 6.019.8415.3824.0340.6261.5296.13150.21216.30384.53600.83865.191177.631538.121946.692403.323460.783.5 3.96 6.1910.1315.8324.7441.8163.3398.96154.63222.66395.84618.50890.641212.261583.362003.942474.003562.573.6 4.07 6.3610.4216.2925.4543.0165.14101.79159.04229.02407.15636.17916.091246.901628.602061.202544.693664.353.7 4.18 6.5410.7116.7426.1544.2066.95104.62163.46235.38418.46653.84941.541281.531673.842118.452615.383766.143.8 4.30 6.7211.0017.1926.8645.3968.76107.44167.88241.75429.77671.52966.981316.171719.082175.712686.063867.933.9 4.41 6.8911.2917.6427.5746.5970.57110.27172.30248.11441.08689.19992.431350.811764.322232.972756.753969.724 4.527.0711.5818.1028.2747.7872.38113.10176.71254.47452.39706.861017.881385.441809.562290.222827.434071.504.1 4.647.2511.8718.5528.9848.9874.19115.92181.13260.83463.70724.531043.321420.081854.802347.482898.124173.294.2 4.757.4212.1619.0029.6950.1776.00118.75185.55267.19475.01742.201068.771454.711900.042404.732968.814275.084.3 4.867.6012.4519.4530.3951.3777.81121.58189.97273.55486.32759.871094.221489.351945.272461.993039.494376.874.4 4.987.7812.7419.9131.1052.5679.62124.41194.39279.92497.63777.541119.661523.991990.512519.243110.184478.654.5 5.097.9513.0320.3631.8153.7681.43127.23198.80286.28508.94795.221145.111558.622035.752576.503180.864580.444.6 5.208.1313.3220.8132.5254.9583.24130.06203.22292.64520.25812.891170.561593.262080.992633.753251.554682.234.7 5.328.3113.6121.2633.2256.1585.05132.89207.64299.00531.56830.561196.001627.892126.232691.013322.234784.024.8
5.43
8.48
13.90
21.71
33.93
57.34
86.86
135.72
212.06
305.36
542.87
848.23
1221.45
1662.53
2171.47
2748.27
3392.92
4885.80
500
600
400
450
300
350
200
250
150
80
100
125
50
65
32
40
20
25
管径/流速/流量对照表2 青岛奥特斯机电系统工程有限公司
管径单位：DN 流速单位：m/s 流量单位：m 3/h 圆周率（π）：3.1415926
管 道 管 径 规 格 大 小（DN）
管径 流量流速
4.9
5.548.6614.1922.1734.6458.5388.67138.5421
6.48311.72554.18865.901246.90169
7.172216.712805.523463.614987.595 5.65
8.8414.4822.6235.345
9.7390.48141.37220.89318.09565.49883.571272.351731.802261.952862.783534.295089.385.1 5.779.0114.7723.0736.0560.9292.29144.20225.31324.45576.80901.241297.791766.442307.192920.033604.985191.175.2 5.889.1915.0623.5236.7662.1294.10147.03229.73330.81588.11918.921323.241801.082352.422977.293675.665292.965.3 5.999.3715.3523.9837.4663.3195.91149.85234.15337.17599.42936.591348.691835.712397.663034.543746.355394.745.4 6.119.5415.6324.4338.1764.5197.72152.68238.56343.53610.73954.261374.131870.352442.903091.803817.045496.535.5 6.229.7215.9224.8838.8865.7099.53155.51242.98349.89622.04971.931399.581904.982488.143149.053887.725598.325.6 6.339.9016.2125.3339.5866.90101.34158.34247.40356.26633.35989.601425.031939.622533.383206.313958.415700.115.7 6.4510.0716.5025.7940.2968.09103.14161.16251.82362.62644.651007.271450.471974.262578.623263.564029.095801.895.8 6.5610.2516.7926.2441.0069.29104.95163.99256.24368.98655.961024.941475.922008.892623.863320.824099.785903.685.9 6.6710.4317.0826.6941.7070.48106.76166.82260.65375.34667.271042.621501.372043.532669.103378.084170.466005.476 6.7910.6017.3727.1442.4171.68108.57169.65265.07381.70678.581060.291526.812078.162714.343435.334241.156107.266.1 6.9010.7817.6627.6043.1272.87110.38172.47269.49388.07689.891077.961552.262112.802759.573492.594311.846209.046.27.0110.9617.9528.0543.8374.06112.19175.30273.91394.43701.201095.631577.712147.442804.813549.844382.526310.836.37.1311.1318.2428.5044.5375.26114.00178.13278.33400.79712.511113.301603.152182.072850.053607.104453.216412.626.47.2411.3118.5328.9545.2476.45115.81180.96282.74407.15723.821130.971628.602216.712895.293664.354523.896514.416.57.3511.4918.8229.4145.9577.65117.62183.78287.16413.51735.131148.641654.052251.342940.533721.614594.586616.196.67.4611.6619.1129.8646.6578.84119.43186.61291.58419.87746.441166.321679.502285.982985.773778.864665.276717.986.77.5811.8419.4030.3147.3680.04121.24189.44296.00426.24757.751183.991704.942320.623031.013836.124735.956819.776.87.6912.0219.6930.7648.0781.23123.05192.27300.41432.60769.061201.661730.392355.253076.253893.384806.646921.566.97.8012.1919.9831.2148.7782.43124.86195.09304.83438.96780.371219.331755.842389.893121.493950.634877.327023.3477.9212.3720.2731.6749.4883.62126.67197.92309.25445.32791.681237.001781.282424.523166.734007.894948.017125.137.18.0312.5520.5632.1250.1984.82128.48200.75313.67451.68802.991254.671806.732459.163211.964065.145018.697226.927.2
8.14
12.72
20.85
32.57
50.89
86.01
130.29
203.58
318.09
458.04
814.30
1272.35
1832.18
2493.80
3257.20
4122.40
5089.38
7328.71
500
600
400
450
300
350
200
250
125
150
80
100
50
65
管径单位：DN 流速单位：m/s 流量单位：m 3/h 圆周率（π）：3.1415926
管 道 管 径 规 格 大 小（DN）
32
40
管径/流速/流量对照表3 青岛奥特斯机电系统工程有限公司
20
25
管径 流量流速
7.38.2612.9021.1433.0251.6087.21132.10206.40322.50464.41825.611290.021857.622528.433302.444179.655160.077430.497.48.3713.0821.4333.4852.3188.40133.91209.23326.92470.77836.921307.691883.072563.073347.684236.915230.757532.287.58.4813.2521.7133.9353.0189.59135.72212.06331.34477.13848.231325.361908.522597.703392.924294.165301.447634.077.68.6013.4322.0034.3853.7290.79137.53214.88335.76483.49859.541343.031933.962632.343438.164351.425372.127735.867.78.7113.6122.2934.8354.4391.98139.34217.71340.18489.85870.851360.701959.412666.983483.404408.685442.817837.657.88.8213.7822.5835.2955.1393.18141.15220.54344.59496.21882.161378.371984.862701.613528.644465.935513.507939.437.98.9313.9622.8735.7455.8494.37142.96223.37349.01502.58893.471396.052010.312736.253573.884523.195584.188041.2289.0514.1423.1636.1956.5595.57144.76226.19353.43508.94904.781413.722035.752770.883619.114580.445654.878143.018.19.1614.3123.4536.6457.2696.76146.57229.02357.85515.30916.091431.392061.202805.523664.354637.705725.558244.808.29.2714.4923.7437.1057.9697.96148.38231.85362.26521.66927.401449.062086.652840.163709.594694.955796.248346.588.39.39
14.6724.0337.5558.6799.15150.19234.68366.68528.02938.711466.732112.092874.793754.834752.215866.928448.378.49.5014.8424.3238.0059.38100.35152.00237.50371.10534.38950.021484.402137.542909.433800.074809.465937.618550.168.59.6115.0224.6138.4560.08101.54153.81240.33375.52540.75961.331502.072162.992944.063845.314866.726008.308651.958.69.7315.2024.9038.9160.79102.73155.62243.16379.94547.11972.641519.752188.432978.703890.554923.986078.988753.738.79.8415.3725.1939.3661.50103.93157.43245.99384.35553.47983.951537.422213.883013.343935.794981.236149.678855.528.89.9515.5525.4839.8162.20105.12159.24248.81388.77559.83995.261555.092239.333047.973981.035038.496220.358957.318.910.0715.7325.7740.2662.91106.32161.05251.64393.19566.191006.571572.762264.773082.614026.275095.746291.049059.10910.1815.9026.0640.7263.62107.51162.86254.47397.61572.561017.881590.432290.223117.254071.505153.006361.739160.889.110.2916.0826.3541.1764.32108.71164.67257.30402.03578.921029.191608.102315.673151.884116.745210.256432.419262.679.210.4016.2626.6441.6265.03109.90166.48260.12406.44585.281040.501625.772341.113186.524161.985267.516503.109364.469.310.5216.4326.9342.0765.74111.10168.29262.95410.86591.641051.811643.452366.563221.154207.225324.766573.789466.259.410.6316.6127.2242.5266.44112.29170.10265.78415.28598.001063.111661.122392.013255.794252.465382.026644.479568.039.510.7416.7927.5142.9867.15113.49171.91268.61419.70604.361074.421678.792417.463290.434297.705439.276715.159669.829.610.8616.9627.7943.4367.86114.68173.72271.43424.12610.731085.731696.462442.903325.064342.945496.536785.849771.619.710.9717.1428.0843.8868.57115.88175.53274.26428.53617.091097.041714.132468.353359.704388.185553.796856.539873.409.811.0817.3228.3744.3369.27117.07177.34277.09432.95623.451108.351731.802493.803394.334433.425611.046927.219975.189.911.2017.4928.6644.7969.98118.26179.15279.92437.37629.811119.661749.472519.243428.974478.655668.306997.9010077.010
11.31
17.67
28.95
45.24
70.69
119.46
180.96
282.74
441.79
636.17
1130.97
1767.15
2544.69
3463.61
4523.89
5725.55
7068.58
10178.8
20253240506580100125
150200250300350400闭式系统0.5-0.60.6-0.70.7-0.90.8-10.9-1.2 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0.4-0.50.5-0.60.6-0.80.7-0.90.8-1.00.9-1.2 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
500
600
400
450
300
350
200
250
125
150
80
100
管径单位：DN 流速单位：m/s 流量单位：m 3/h 圆周率（π）：3.1415926
管 道 管 径 规 格 大 小（DN）
50
65
管径/流速/流量对照表4 青岛奥特斯机电系统工程有限公司
25
32
40
管径流速推荐安全值
流速推荐值m/s:
20
管径(DN)
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
管径流速流量对照表
管径/流速/流量对照表 管径（DN）0.4m/s 0.6m/s 0.8m/s 1.0m/s 1.2m/s 1.4m/s 1.6 m/s 1.8 m/s 2.0m/s 2.2m/s 2.4m/s 2.6m/s 2.8m/s 3.0m/s 流速对应流量m3/h 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 90.5 113.1 135.7 158.3 181.0 208.6 226.2 248.8 271.4 294.1 316.7 339.3 250 70.7 106.0 141.4 176.7 212.1 247.4 282.7 318.1 353.4 388.8 424.1 489.5 494.8 530.1 300 101.8 152.7 208.6 254.5 305.4 386.3 407.1 488.0 508.9 589.8 640.7 661.6 712.5 763.4 350 138.5 207.8 277.1 346.4 415.6 484.9 554.2 623.4 692.7 762.0 831.3 900.5 989.8 1089.1 400 181.0 271.4 381.9 462.4 542.9 633.3 723.8 814.3 904.8 995.3 1085.7 1176.2 1286.7 1357.2 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
对照表之水泵管径流速流量
流量与管径、压力、流速的一般关系 一般工程上计算时，水管路，压力常见为0.1--0.6MPa，水在水管中流速在1--3米/秒，常取1.5米/秒。 流量=管截面积X流速=0.002827X管内径的平方X流速 (立方米/小时)。 其中，管内径单位：mm ，流速单位：米/秒，饱和蒸汽的公式与水相同，只是流速一般取20--40米/秒。 水头损失计算Chezy 公式 Q——断面水流量（m3/s） C——Chezy糙率系数（m1/2/s） A——断面面积（m2） R——水力半径（m） S——水力坡度（m/m） Darcy-Weisbach公式 h f——沿程水头损失（mm3/s）
f ——Darcy-Weisbach水头损失系数（无量纲） l——管道长度（m） d——管道内径（mm） v ——管道流速（m/s） g ——重力加速度（m/s2） 水力计算是输配水管道设计的核心，其实质就是在保证用户水量、水压安全的条件下，通过水力计算优化设计方案，选择合适的管材和确经济管径。输配水管道水力计算包含沿程水头损失和局部水头损失，而局部水头损失一般仅为沿程水头损失的5~10%，因此本文主要研究、探讨管道沿程水头损失的计算方法。 1.1 管道常用沿程水头损失计算公式及适用条件 管道沿程水头损失是水流摩阻做功消耗的能量，不同的水流流态，遵循不同的规律，计算方法也不一样。输配水管道水流流态都处在紊流区，紊流区水流的阻力是水的粘滞力及水流速度与压强脉动的结果。紊流又根据阻力特征划分为水力光滑区、过渡区、粗糙区。管道沿程水头损失计算公式都有适用范围和条件，一般都以水流阻力特征区划分。 水流阻力特征区的判别方法，工程设计宜采用数值做为判别式，目前国内管道经常采用的沿程水头损失水力计算公式及相应的摩阻力系数，按照水流阻力特征区划分如表1。 沿程水头损失水力计算公式和摩阻系数表1
水系统管径流速流量对照表
管径 流量流速 0.10.110.180.290.450.71 1.19 1.81 2.83 4.42 6.3611.3117.6725.4534.6445.2457.2670.69101.790.20.230.350.580.90 1.41 2.39 3.62 5.658.8412.7222.6235.3450.8969.2790.48114.51141.37203.580.30.340.530.87 1.36 2.12 3.58 5.438.4813.2519.0933.9353.0176.34103.91135.72171.77212.06305.360.40.450.71 1.16 1.81 2.83 4.787.2411.3117.6725.4545.2470.69101.79138.54180.96229.02282.74407.150.50.570.88 1.45 2.26 3.53 5.979.0514.1422.0931.8156.5588.36127.23173.18226.19286.28353.43508.940.60.68 1.06 1.74 2.71 4.247.1710.8616.9626.5138.1767.86106.03152.68207.82271.43343.53424.12610.730.70.79 1.24 2.03 3.17 4.958.3612.6719.7930.9344.5379.17123.70178.13242.45316.67400.79494.80712.510.80.90 1.41 2.32 3.62 5.659.5614.4822.6235.3450.8990.48141.37203.58277.09361.91458.04565.49814.300.9 1.02 1.59 2.61 4.07 6.3610.7516.2925.4539.7657.26101.79159.04229.02311.72407.15515.30636.17916.091 1.13 1.77 2.90 4.527.0711.9518.1028.2744.1863.62113.09176.71254.47346.36452.39572.56706.861017.881.1 1.24 1.94 3.18 4.987.7813.1419.9131.1048.6069.98124.41194.39279.92381.00497.63629.81777.541119.661.2 1.36 2.12 3.47 5.438.4814.3421.7133.9353.0176.34135.72212.06305.36415.63542.87687.07848.231221.451.30 1.47 2.30 3.76 5.889.1915.5323.5236.7657.4382.70147.03229.73330.81450.27588.11744.32918.921323.241.40 1.58 2.47 4.05 6.339.9016.7225.3339.5861.8589.06158.34247.40356.26484.90633.35801.58989.601425.031.50 1.70 2.65 4.34 6.7910.6017.9227.1442.4166.2795.43169.65265.07381.70519.54678.58858.831060.291526.811.60 1.81 2.83 4.637.2411.3119.1128.9545.2470.69101.79180.96282.74407.15554.18723.82916.091130.971628.601.70 1.92 3.00 4.927.6912.0220.3130.7648.0775.10108.15192.27300.41432.60588.81769.06973.341201.661730.391.80 2.04 3.18 5.218.1412.7221.5032.5750.8979.52114.51203.58318.09458.04623.45814.301030.601272.351832.181.90 2.15 3.36 5.508.6013.4322.7034.3853.7283.94120.87214.88335.76483.49658.09859.541087.851343.031933.962.00 2.26 3.53 5.799.0514.1423.8936.1956.5588.36127.23226.19353.43508.94692.72904.781145.111413.722035.752.10 2.38 3.71 6.089.5014.8425.0938.0059.3892.78133.60237.50371.10534.38727.36950.021202.371484.402137.542.20 2.49 3.89 6.379.9515.5526.2839.8162.2097.19139.96248.81388.77559.83761.99995.261259.621555.092239.332.30 2.60 4.06 6.6610.4016.2627.4841.6265.03101.61146.32260.12406.44585.28796.631040.501316.881625.772341.112.40 2.71 4.24 6.95 10.86 16.96 28.67 43.43 67.86 106.03 152.68 271.43 424.12 610.73 831.27 1085.73 1374.13 1696.46 2442.90 500 600 400 450 300 350 250 150 100 65 32 40 20 25 管径/流速/流量对照表1 青岛奥特斯机电系统工程有限公司 管径单位：DN 流速单位：m/s 流量单位：m 3/h 圆周率（π）：3.1415926 管 道 管 径 规 格 大 小（DN） 50 80 125 200
管道流速对照表
管径/流速/流量对照表 流量 m3/h 管径(DN) 0.4m/s0.6m/s0.8m/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 200.50.70.9 1.1 1.4 1.6 1.8 2.0 2.3 2.5 2.7 2.9 3.2 3.4 250.7 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 6.97.58.18.7 40 1.8 2.7 3.6 4.5 5.4 6.37.28.19.010.010.911.812.713.6 50 2.8 4.2 5.77.18.59.911.312.714.115.617.018.419.821.2 65 4.87.29.611.914.316.719.121.523.926.328.731.133.435.8 807.210.914.518.121.725.329.032.636.239.843.447.050.754.3 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