管道流速流量速查表
管径 流量流速0.10.110.180.290.450.711.191.812.834.426.3611.3117.6725.4534.6445.2457.2670.69101.79
0.20.230.350.580.901.412.393.625.658.8412.7222.6235.3450.8969.2790.48114.51141.37203.58
0.30.340.530.871.362.123.585.438.4813.2519.0933.9353.0176.34103.91135.72171.77212.06305.36
0.40.450.711.161.812.834.787.2411.3117.6725.4545.2470.69101.79138.54180.96229.02282.74407.15
0.50.570.881.452.263.535.979.0514.1422.0931.8156.5588.36127.23173.18226.19286.28353.43508.94
0.60.681.061.742.714.247.1710.8616.9626.5138.1767.86106.03152.68207.82271.43343.53424.12610.73
0.70.791.242.033.174.958.3612.6719.7930.9344.5379.17123.70178.13242.45316.67400.79494.80712.51
0.80.901.412.323.625.659.5614.4822.6235.3450.8990.48141.37203.58277.09361.91458.04565.49814.30
0.91.021.592.614.076.3610.7516.2925.4539.7657.26101.79159.04229.02311.72407.15515.30636.17916.09
11.131.772.904.527.0711.9518.1028.2744.1863.62113.10176.71254.47346.36452.39572.56706.861017.88
1.11.241.943.184.987.7813.1419.9131.1048.6069.98124.41194.39279.92381.00497.63629.81777.541119.66
1.21.362.123.475.438.4814.3421.7133.9353.0176.34135.72212.06305.36415.63542.87687.07848.231221.45
1.31.472.303.765.889.1915.5323.5236.7657.4382.70147.03229.73330.81450.27588.11744.32918.921323.24
1.41.582.474.056.339.9016.7225.3339.5861.8589.06158.34247.40356.26484.90633.35801.58989.601425.03
1.51.702.654.346.7910.6017.9227.1442.4166.2795.43169.65265.07381.70519.54678.58858.831060.291526.81
1.61.812.834.637.2411.3119.1128.9545.2470.69101.79180.96282.74407.15554.18723.82916.091130.971628.60
1.71.923.004.927.6912.0220.3130.7648.0775.10108.15192.27300.41432.60588.81769.06973.341201.661730.39
1.82.043.185.218.1412.7221.5032.5750.8979.52114.51203.58318.09458.04623.45814.301030.601272.351832.18
1.92.153.365.508.6013.4322.7034.3853.7283.94120.87214.88335.76483.49658.09859.541087.851343.031933.96
22.263.535.799.0514.1423.8936.1956.5588.36127.23226.19353.43508.94692.72904.781145.111413.722035.75
2.12.383.716.089.5014.8425.0938.0059.3892.78133.60237.50371.10534.38727.36950.021202.371484.402137.54
2.22.493.896.379.9515.5526.2839.8162.2097.19139.96248.81388.77559.83761.99995.261259.621555.092239.33
2.32.604.066.6610.4016.2627.4841.6265.03101.61146.32260.12406.44585.28796.631040.501316.881625.772341.11
2.42.714.246.9510.8616.9628.6743.4367.86106.03152.68271.43424.12610.73831.271085.731374.131696.462442.90656005020080150500管径/流速/流量对照表 1
管径单位：DN 流速单位：m/s 流量单位：m3/h 圆周率（π）：3.1415926
20253240250100管 道 管 径 规 格 大 小（DN）
300350400450125
管径
流量
流速
2.52.834.427.2411.3117.6729.8645.2470.69110.45159.04282.74441.79636.17865.901130.971431.391767.152544.69
2.62.944.597.5311.7618.3831.0647.0573.51114.86165.40294.05459.46661.62900.541176.211488.641837.832646.48
2.73.054.777.8212.2119.0932.2548.8676.34119.28171.77305.36477.13687.07935.171221.451545.901908.522748.27
2.83.174.958.1112.6719.7933.4550.6779.17123.70178.13316.67494.80712.51969.811266.691603.151979.202850.05
2.93.285.128.4013.1220.5034.6452.4882.00128.12184.49327.98512.47737.961004.451311.931660.412049.892951.84
33.395.308.6913.5721.2135.8454.2984.82132.54190.85339.29530.14763.411039.081357.171717.672120.583053.63
3.13.515.488.9814.0221.9137.0356.1087.65136.95197.21350.60547.82788.851073.721402.411774.922191.263155.42
3.23.625.659.2614.4822.6238.2357.9190.48141.37203.58361.91565.49814.301108.351447.651832.182261.953257.20
3.33.735.839.5514.9323.3339.4259.7293.31145.79209.94373.22583.16839.751142.991492.881889.432332.633358.99
3.43.856.019.8415.3824.0340.6261.5296.13150.21216.30384.53600.83865.191177.631538.121946.692403.323460.78
3.53.966.1910.1315.8324.7441.8163.3398.96154.63222.66395.84618.50890.641212.261583.362003.942474.003562.57
3.64.076.3610.4216.2925.4543.0165.14101.79159.04229.02407.15636.17916.091246.901628.602061.202544.693664.35
3.74.186.5410.7116.7426.1544.2066.95104.62163.46235.38418.46653.84941.541281.531673.842118.452615.383766.14
3.84.306.7211.0017.1926.8645.3968.76107.44167.88241.75429.77671.52966.981316.171719.082175.712686.063867.93
3.94.416.8911.2917.6427.5746.5970.57110.27172.30248.11441.08689.19992.431350.811764.322232.972756.753969.72
44.527.0711.5818.1028.2747.7872.38113.10176.71254.47452.39706.861017.881385.441809.562290.222827.434071.50
4.14.647.2511.8718.5528.9848.9874.19115.92181.13260.83463.70724.531043.321420.081854.802347.482898.124173.29
4.24.757.4212.1619.0029.6950.1776.00118.75185.55267.19475.01742.201068.771454.711900.042404.732968.814275.08
4.34.867.6012.4519.4530.3951.3777.81121.58189.97273.55486.32759.871094.221489.351945.272461.993039.494376.87
4.44.987.7812.7419.9131.1052.5679.62124.41194.39279.92497.63777.541119.661523.991990.512519.243110.184478.65
4.55.097.9513.0320.3631.8153.7681.43127.23198.80286.28508.94795.221145.111558.622035.752576.503180.864580.44
新管径流速流量对照表
管径 流量流速0.10.110.180.290.450.711.191.812.834.426.3611.3117.670.20.230.350.580.901.412.393.625.658.8412.7222.6235.340.30.340.530.871.362.123.585.438.4813.2519.0933.9353.010.40.450.711.161.812.834.787.2411.3117.6725.4545.2470.690.50.570.881.452.263.535.979.0514.1422.0931.8156.5588.360.60.681.061.742.714.247.1710.8616.9626.5138.1767.86106.030.70.791.242.033.174.958.3612.6719.7930.9344.5379.17123.700.80.901.412.323.625.659.5614.4822.6235.3450.8990.48141.370.91.021.592.614.076.3610.7516.2925.4539.7657.26101.79159.0411.131.772.904.527.0711.9518.1028.2744.1863.62113.10176.711.11.241.943.184.987.7813.1419.9131.1048.6069.98124.41194.391.21.362.123.475.438.4814.3421.7133.9353.0176.34135.72212.061.31.472.303.765.889.1915.5323.5236.7657.4382.70147.03229.731.41.582.474.056.339.9016.7225.3339.5861.8589.06158.34247.401.51.702.654.346.7910.6017.9227.1442.4166.2795.43169.65265.071.61.812.834.637.2411.3119.1128.9545.2470.69101.79180.96282.741.71.923.004.927.6912.0220.3130.7648.0775.10108.15192.27300.411.82.043.185.218.1412.7221.5032.5750.8979.52114.51203.58318.091.92.153.365.508.6013.4322.7034.3853.7283.94120.87214.88335.7622.263.535.799.0514.1423.8936.1956.5588.36127.23226.19353.432.12.383.716.089.5014.8425.0938.0059.3892.78133.60237.50371.102.22.493.896.379.9515.5526.2839.8162.2097.19139.96248.81388.772.32.604.066.6610.4016.2627.4841.6265.03101.61146.32260.12406.442.42.714.246.9510.8616.9628.6743.4367.86106.03152.68271.43424.122501501006532402025管径/流速/流量对照表 1管径单位：DN 流速单位：m/s 流量单位：m3/h 圆周率（π）：3.1415926管 道 管 径 规 格 大 小（DN）5080125200管径 流量流速2.52.834.427.2411.3117.6729.8645.2470.69110.45159.04282.74441.792.62.944.597.5311.7618.3831.0647.0573.51114.86165.40294.05459.462.73.054.777.8212.2119.0932.2548.8676.34119.28171.77305.36477.132.83.174.958.1112.6719.7933.4550.6779.17123.70178.13316.67494.802.93.285.128.4013.1220.5034.6452.4882.00128.12184.49327.98512.4733.395.308.6913.5721.2135.8454.2984.82132.54190.85339.29530.143.13.515.488.9814.0221.9137.0356.1087.65136.95197.21350.60547.823.23.625.659.2614.4822.6238.2357.9190.48141.37203.58361.91565.493.33.735.839.5514.9323.3339.4259.7293.31145.79209.94373.22583.163.43.856.019.8415.3824.0340.6261.5296.13150.21216.30384.53600.833.53.966.1910.1315.8324.7441.8163.3398.96154.63222.66395.84618.503.64.076.3610.4216.2925.4543.0165.14101.79159.04229.02407.15636.173.74.186.5410.7116.7426.1544.2066.95104.62163.46235.38418.46653.843.84.306.7211.0017.1926.8645.3968.76107.44167.88241.75429.77671.523.94.416.8911.2917.6427.5746.5970.57110.27172.30248.11441.08689.1944.527.0711.5818.1028.2747.7872.38113.10176.71254.47452.39706.864.14.647.2511.8718.5528.9848.9874.19115.92181.13260.83463.70724.534.24.757.4212.1619.0029.6950.1776.00118.75185.55267.19475.01742.204.34.867.6012.4519.4530.3951.3777.81121.58189.97273.55486.32759.874.44.987.7812.7419.9131.1052.5679.62124.41194.39279.92497.63777.544.55.097.9513.0320.3631.8153.7681.43127.23198.80286.28508.94795.224.65.208.1313.3220.8132.5254.9583.24130.06203.22292.64520.25812.894.75.328.3113.6121.2633.2256.1585.05132.89207.64299.00531.56830.564.85.438.4813.9021.7133.9357.3486.86135.72212.06305.36542.87848.2320025012515080100506532402025管径/流速/流量对照表 2
常用液体和气体介质管道流速表
经常使用液体和气体介质管道流速表之杨若古兰创作
发布时间：11-09-06 来源： 点击量：1259 字段选择：大 中 小
经常使用液体和气体介质管道流速表
流量计在选型时：我们要晓得介质的流量大小，也就是介质流速快慢，如果太快容易损坏流量计，影响流量计的使用寿命.
经常使用液体和气体介质管道流速表
流体介质 利用处合 管道类型 介质平均流速 备注
水 普通给水 主压力管道 2-3
低压管道
泵进口
泵出口
工业用水 离心泵压力管 3-4
离心泵吸水管 DN250 1-2
DN250
来去泵压力管
来去泵吸水管 <1
给水总管
排水管
冷却 冷水管
热水管
凝结 凝结水泵吸水管
凝结水泵出水管 1-2
自流凝结水管
普通液体 低粘度
高粘度液体 DN25
DN50
DN100
DN25
DN50
DN100
DN200
DN25
DN50
DN100
DN200
气体 低压 10-20
高压 8-15 20-30MPa
排气 烟道 2-7
紧缩空气压气机 压气机进气管 -10
压气机输气管 -20
普通情况 DN<50 <8
DN>70 <15
饱和蒸汽锅炉、汽轮机 DN<100 15-30
DN=100-200 25-35
DN>200 30-40
过热蒸汽 锅炉、汽轮机 DN<100 20-40
DN=100-200 30-50
DN>200 40-60
流量计测量粘度较大的介质时，如果流速太慢，流量计测量没法计量.在选型时必定要注
空调水管管道流量、流速表
空调水管管道流量、流速表
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
管径与流速对照表
管径/流速/流量对照表
管径 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
(DN 流速对应流量m/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
管径流速流量对照表
管径 流量流速0.10.110.180.290.450.711.191.812.834.426.3611.3117.6725.4534.6445.2457.2670.69101.790.20.230.350.580.901.412.393.625.658.8412.7222.6235.3450.8969.2790.48114.51141.37203.580.30.340.530.871.362.123.585.438.4813.2519.0933.9353.0176.34103.91135.72171.77212.06305.360.40.450.711.161.812.834.787.2411.3117.6725.4545.2470.69101.79138.54180.96229.02282.74407.150.50.570.881.452.263.535.979.0514.1422.0931.8156.5588.36127.23173.18226.19286.28353.43508.940.60.681.061.742.714.247.1710.8616.9626.5138.1767.86106.03152.68207.82271.43343.53424.12610.730.70.791.242.033.174.958.3612.6719.7930.9344.5379.17123.70178.13242.45316.67400.79494.80712.510.80.901.412.323.625.659.5614.4822.6235.3450.8990.48141.37203.58277.09361.91458.04565.49814.300.91.021.592.614.076.3610.7516.2925.4539.7657.26101.79159.04229.02311.72407.15515.30636.17916.0911.131.772.904.527.0711.9518.1028.2744.1863.62113.10176.71254.47346.36452.39572.56706.861017.881.11.241.943.184.987.7813.1419.9131.1048.6069.98124.41194.39279.92381.00497.63629.81777.541119.661.21.362.123.475.438.4814.3421.7133.9353.0176.34135.72212.06305.36415.63542.87687.07848.231221.451.31.472.303.765.889.1915.5323.5236.7657.4382.70147.03229.73330.81450.27588.11744.32918.921323.241.41.582.474.056.339.9016.7225.3339.5861.8589.06158.34247.40356.26484.90633.35801.58989.601425.031.51.702.654.346.7910.6017.9227.1442.4166.2795.43169.65265.07381.70519.54678.58858.831060.291526.811.61.812.834.637.2411.3119.1128.9545.2470.69101.79180.96282.74407.15554.18723.82916.091130.971628.601.71.923.004.927.6912.0220.3130.7648.0775.10108.15192.27300.41432.60588.81769.06973.341201.661730.391.82.043.185.218.1412.7221.5032.5750.8979.52114.51203.58318.09458.04623.45814.301030.601272.351832.181.92.153.365.508.6013.4322.7034.3853.7283.94120.87214.88335.76483.49658.09859.541087.851343.031933.9622.263.535.799.0514.1423.8936.1956.5588.36127.23226.19353.43508.94692.72904.781145.111413.722035.752.12.383.716.089.5014.8425.0938.0059.3892.78133.60237.50371.10534.38727.36950.021202.371484.402137.542.22.493.896.379.9515.5526.2839.8162.2097.19139.96248.81388.77559.83761.99995.261259.621555.092239.332.32.604.066.6610.4016.2627.4841.6265.03101.61146.32260.12406.44585.28796.631040.501316.881625.772341.115020080管径/流速/流量对照表
常用液体和气体介质管道流速表 2
常用液体和气体介质管道流速表
常用液体和气体介质管道流速表
流量计 在选型时：我们要知道介质的流量大小，也就是介质流速快慢，如果太快容易损坏流量计，影响流量计的使用寿命。
常用液体和气体介质管道流速表
流体介质 应用场所 管道类型 介质平均流速 备注
水 一般给水 主压力管道 2-3
低压管道 0.5-1
泵进口 0.5-2.0
泵出口 1.0-3.0
工业用水 离心泵压力管 3-4
离心泵吸水管 DN250 1-2
DN250 1.5-2.5
往复泵压力管 1.5-2
往复泵吸水管 <1
给水总管 1.5-3
排水管 0.5-1.0
冷却 冷水管 1.5-2.5
热水管 1-1.5
凝结 凝结水泵吸水管 0.5-1
凝结水泵出水管 1-2
自流凝结水管 0.1-0.3
一般液体 低粘度 1.5-3.0
高粘度液体 粘度
50mPa.s DN25 0.5-0.9
DN50 0.7-1.0
DN100 1.0-1.6
粘度
100mPa.s DN25 0.3-0.6
DN50 0.5-0.7
DN100 0.7-1.0
DN200 1.2-1.6
粘度
1000mPa.s DN25 0.1-0.2
DN50 0.16-0.25
DN100 0.25-0.35 DN200 0.35-0.55
气体 低压 10-20
高压 8-15 20-30MPa
排气 烟道 2-7
压缩空气 压气机 压气机进气管 -10
压气机输气管 -20
一般情况 DN<50 <8
DN>70 <15
饱和蒸汽 锅炉、汽轮机 DN<100 15-30
DN=100-200 25-35
DN>200 30-40
过热蒸汽 锅炉、汽轮机 DN<100 20-40
水管流速表
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精品资料 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
管道流速对照表
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
常用的管道流速表
1 常用的管道流速
流体种类 应用场合 管道种类 平均流速 备注
水 一般给水 主压力管道 2-3
低压管道 0.5-1
泵进口 0.5-2.0
泵出口 1.0-3.0
工业用水 离心泵压力管 3-4
离心泵吸水管 DN250 1-2
DN250 1.5-2.5
往复泵压力管 1.5-2
往复泵吸水管 <1
给水总管 1.5-3
排水管 0.5-1.0
冷却 冷水管 1.5-2.5
热水管 1-1.5
凝结 凝结水泵吸水管 0.5-1
凝结水泵出水管 1-2
自流凝结水管 0.1-0.3
一般液体 低粘度 1.5-3.0
高粘度液体 粘度
50mPa.s DN25 0.5-0.9
DN50 0.7-1.0
DN100 1.0-1.6
粘度
100mPa.s DN25 0.3-0.6
DN50 0.5-0.7
DN100 0.7-1.0
DN200 1.2-1.6
粘度
1000mPa.s DN25 0.1-0.2
DN50 0.16-0.25
DN100 0.25-0.35
DN200 0.35-0.55
气体 低压 10-20
高压 8-15 20-30MPa
排气 烟道 2-7
压缩空气 压气机 压气机进气管 -10
压气机输气管 -20
一般情况 DN<50 <8 2 DN>70 <15
饱和蒸汽 锅炉、汽轮机 DN<100 15-30
DN=100-200 25-35
DN>200 30-40
过热蒸汽 锅炉、汽轮机 DN<100 20-40
DN=100-200 30-50
DN>200 40-60
水泵的型号
水泵型号代表水泵的构造特点工作性能和被输送介质的性质等。由于水泵的品种繁多，规格不一，所以型号也较紊乱，这里只列出一些常见的水泵型号。
管径流速计算表
泵后流量控制泵前流量控制公称尺寸流量（m³/h）流速（m/s）公称尺寸流量（m³/h）流速（m/s）公称尺寸流量（m³/h）流速（m/s）1/2"11.84DN1511.38DN150.61.31＜1.5m³/h＜1m³/h3/4"1.51.49DN201.51.20DN201.51.591.5-3m³/h1-1.5m³/h1"2.51.50DN256.53.11DN2563.683-5m³/h1.5-3m³/h1-1/4"4.51.51DN326.51.99DN326.82.395-8m³/h3-4.5m³/h1-1/2"61.46DN406.51.27DN4071.598-12m³/h5-7.5m³/h2"101.46DN50182.22DN50101.4112-20m³/h8-12m³/h2-1/2"252.54DN65302.59DN65171.4220-29m³/h12-17m³/h3"231.50DN80352.10DN80502.7030-41m³/h17-25m³/h4"572.13DN100451.81DN100501.7742-62m³/h25-37m³/h5"1022.41DN12543810.87DN125902.0763-100m³/h37-60m³/h6"751.24DN1501603.04DN150901.47100-130m³/h60-75m³/h8"1501.41DN2001801.73DN2001040.89130-210m³/h75-150m³/h10"2351.41DN2502881.79DN2502351.26210-330m³/h150-235m³/h12"3001.27DN3003001.47DN3003001.13330-400m³/h235-300m³/h美标SCH80 UPVC国标UPVC化工管PN1.0钢制管件GB/T 1047-1995