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

350138.5207.8277.1346.4415.6484.9554.2623.4692.7762.0831.3900.5969.81039.1

400181.0271.4361.9452.4542.9633.3723.8814.3904.8995.31085.71176.21266.71357.2

450229.0343.5458.0572.6687.1801.6916.11030.61145.11259.61374.11488.61603.21717.7

500282.7424.1565.5706.9848.2989.61131.01272.31413.71555.11696.51837.81979.22120.6

600407.1610.7814.31017.91221.41425.01628.61832.22035.72239.32442.92646.52850.03053.6

20253240506580100125150200250300350400闭式系统0.5-0.60.6-0.70.7-0.90.8-10.9-1.21.1-1.41.2-1.61.3-1.81.5-2.01.6-2.21.8-2.51.8-2.61.9-2.91.6-2.51.8-2.6开式系统0.4-0.50.5-0.60.6-0.80.7-0.90.8-1.00.9-1.21.1-1.41.2-1.61.4-1.81.5-2.01.6-2.31.7-2.41.7-2.41.6-2.11.8-2.3管径/流速/流量对照表

流速推荐值m/s:管径(DN)管径(DN)流量 m3/h

0.4m/s0.6m/s

0.8m/s1.0m/s1.2m/s1.4m/s1.6m/s1.8m/s2.0m/s2.2m/s2.4m/s2.6m/s2.8m/s3.0m/s内面积m2

200.50.70.91.11.41.61.82.02.32.52.72.93.23.40.000314

250.71.11.41.82.12.52.83.23.53.94.24.64.95.30.000491

321.21.72.32.93.54.14.65.25.86.46.97.58.18.70.000804

401.82.73.64.55.46.37.28.19.010.010.911.812.713.60.001257

502.84.25.77.18.59.911.312.714.115.617.018.419.821.20.001963

654.87.29.611.914.316.719.121.523.926.328.731.133.435.80.003318

807.210.914.518.121.725.329.032.636.239.843.447.050.754.30.005027

10011.317.022.628.333.939.645.250.956.562.267.973.579.284.80.007854

12517.726.535.344.253.061.970.779.588.497.2106.0114.9123.7132.50.012272

15025.438.250.963.676.389.1101.8114.5127.2140.0152.7165.4178.1190.90.017671

20045.267.990.5113.1135.7158.3181.0203.6226.2248.8271.4294.1316.7339.30.031416

25070.7106.0141.4176.7212.1247.4282.7318.1353.4388.8424.1459.5494.8530.10.049087

300101.8152.7203.6254.5305.4356.3407.1458.0508.9559.8610.7661.6712.5763.40.070686

350138.5207.8277.1346.4415.6484.9554.2623.4692.7762.0831.3900.5969.81039.10.096211

400181.0271.4361.9452.4542.9633.3723.8814.3904.8995.31085.71176.21266.71357.20.125664

450229.0343.5458.0572.6687.1801.6916.11030.61145.11259.61374.11488.61603.21717.70.159043

500282.7424.1565.5706.9848.2989.61131.01272.31413.71555.11696.51837.81979.22120.60.196349

600407.1610.7814.31017.91221.41425.01628.61832.22035.72239.32442.92646.52850.03053.60.282743

20253240506580100125150200250300350400闭式系统0.5-0.60.6-0.70.7-0.90.8-10.9-1.21.1-1.41.2-1.61.3-1.81.5-2.01.6-2.21.8-2.51.8-2.61.9-2.91.6-2.51.8-2.6开式系统0.4-0.50.5-0.60.6-0.80.7-0.90.8-1.00.9-1.21.1-1.41.2-1.61.4-1.81.5-2.01.6-2.31.7-2.41.7-2.41.6-2.11.8-2.3管径/流速/流量对照表

管径(DN)流量 m3/h

管径(DN)流速推荐值m/s:镀锌钢管(外径/内

径)：DN1521.7516.25DN2026.7521.25DN2533.5 27DN3242.2535.75DN4048 41DN5060 53DN7075.5 68DN8088.580.5DN100114106DN125140131DN150

LoseFPSCHILLER WATER 1RT=2.4GPM=3.517KWCONDENSING WATER 1RT=3GPM 冷却水

USRT 制冷量PIPE SIZE 管USRT 制冷量（冷PIPE SIZE 管L

低值H

高值L

低值

(kw)H

高值

(kw)/100ftL

低值H

高值L

低值H

高值

123.5177.0346.323/4DN20123.5177.0343.013/4DN20

3410.55114.0684.541DN253410.55114.0682.971DN25

5717.58524.6194.21-1/4DN325617.58521.1023.431-1/4DN32

81128.13638.6874.311-1/2DN407924.61931.6534.11-1/2DN40

122142.20473.8574.672DN50101735.1759.7894.782DN50

224077.374140.687.112-1/2DN65183363.306116.066.72-1/2DN65

4063140.68221.575.143DN803450119.58175.856.513DN80

63125221.57439.634.894DN10051100179.37351.77.554DN100

125200439.63703.43.855DN125101160355.22562.727.75DN125

201335706.921178.24.036DN150161260566.24914.428.896DN150

3367001181.72461.93.828DN200261500917.941758.510.38DN200

70110002465.435173.0810DN25050185017622989.510.610DN250

100115003520.55275.52.3712DN300851120029934220.410.312DN300

1501185052796506.52.2714DN350120115004223.95275.510.714DN350

1851250065108792.52.0116DN400150120005279703410.916DN400

250129008796101991.4918DN450200123007037.58089.11018DN450

2991375010519131891.3920DN500230130008092.61055110.320DN500

3751500013192175850.9624DN6003001400010555140689.5824DN600

5001830017589291910.73304001650014072228619.7130

83011250029195439630.553665011000022864351709.4636

125011875043966659440.55421000115000351745275510.4242

187512500065947879250.48481500120000527597034010.6448

2500130000879291055100.3654200012300070344808919.3154

30001500001055141758500.24722300140000808951406809.4772

50000650001758502286050.198440001530001406841864019.2684

N=1 1/2"-0.4,2"-0.45,3"-0.50

4"-0.55,5"-0.64,6"-0.66

1RT（冷吨）=3.517KW

1ft=304.8mmININ

PS: USRTGAL=3.785 L.LOSS USE 8 FT/100FTB=HQr/6120N,H=揚程(M),Q=L/MIN,r=1