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20
Geothermal Applications
ClimateMaster: Smart. Responsible. Comfortable.
Table 3d: Polyethylene Pressure Drop per 100ft of Pipe
Antifreeze (30°F [-1°C] EWT): 25% Ethylene by volume solution - freeze protected to 15°F [-9.4°F]
Flow
Rate
3/4” IPS SDR11 1” IPS SDR11 1-1/4” IPS SCH40 1-1/2” IPS SCH40 2” IPS SCH40
PD (ft)
Vel
(ft/s)
Re (ft)
Vel
(ft/s)
Re PD (ft)
Vel
(ft/s)
Re PD
Vel
(ft/s)
Re PD
Vel
(ft/s)
Re
1 0.40 0.55 1048 0.16 0.35 837 0.06 0.22 664 0.04 0.17 580 0.02 0.11 464
2 0.81 1.10 2096 0.33 0.70 1674 0.13 0.44 1328 0.08 0.34 1160 0.03 0.22 928
3 2.57 1.66 3144 0.68 1.06 2511 0.20 0.66 1991 0.11 0.51 1740 0.05 0.32 1392
4 4.24 2.21 4192 1.47 1.41 3348 0.42 0.89 2655 0.17 0.68 2320 0.06 0.43 1856
5 6.19 2.76 5241 2.15 1.76 4185 0.72 1.11 3319 0.36 0.85 2900 0.09 0.54 2320
6 8.45 3.31 6289 2.93 2.11 5022 0.99 1.33 3983 0.52 1.01 3480 0.17 0.65 2783
7 11.00 3.87 7337 3.81 2.47 5859 1.28 1.55 4646 0.68 1.18 4060 0.24 0.76 3247
8 13.84 4.42 8385 4.79 2.82 6695 1.61 1.77 5310 0.85 1.35 4640 0.30 0.87 3711
9 16.96 4.97 9433 5.86 3.17 7532 1.96 1.99 5974 1.04 1.52 5220 0.36 0.97 4175
10 20.34 5.52 10481 7.02 3.52 8369 2.35 2.22 6638 1.25 1.69 5800 0.44 1.08 4639
11 23.99 6.08 11529 8.27 3.87 9206 2.77 2.44 7301 1.47 1.86 6380 0.51 1.19 5103
12 27.90 6.63 12577 9.61 4.23 10043 3.21 2.66 7965 1.70 2.03 6960 0.59 1.30 5567
13 32.07 7.18 13625 11.04 4.58 10880 3.69 2.88 8629 1.95 2.20 7540 0.68 1.41 6031
14 12.55 4.93 11717 4.19 3.10 9293 2.22 2.37 8120 0.77 1.51 6495
15 14.15 5.28 12554 4.72 3.32 9956 2.50 2.54 8701 0.87 1.62 6959
16 15.83 5.63 13391 5.28 3.54 10620 2.79 2.71 9281 0.97 1.73 7423
17 17.59 5.99 14228 5.86 3.77 11284 3.10 2.88 9861 1.08 1.84 7886
18 19.43 6.34 15065 6.47 3.99 11948 3.42 3.04 10441 1.19 1.95 8350
19 21.35 6.69 15902 7.11 4.21 12611 3.75 3.21 11021 1.30 2.06 8814
20 23.35 7.04 16739 7.77 4.43 13275 4.10 3.38 11601 1.43 2.16 9278
21 8.46 4.65 13939 4.46 3.55 12181 1.55 2.27 9742
22 9.17 4.87 14603 4.84 3.72 12761 1.68 2.38 10206
23 9.91 5.09 15266 5.23 3.89 13341 1.81 2.49 10670
24 10.67 5.32 15930 5.63 4.06 13921 1.95 2.60 11134
25 11.46 5.54 16594 6.04 4.23 14501 2.10 2.71 11598
26 12.27 5.76 17258 6.47 4.40 15081 2.24 2.81 12062
28 13.97 6.20 18585 7.36 4.74 16241 2.55 3.03 12989
30 15.76 6.65 19913 8.30 5.07 17401 2.88 3.25 13917
32 17.65 7.09 21240 9.30 5.41 18561 3.22 3.46 14845
34 10.34 5.75 19721 3.58 3.68 15773
36 11.43 6.09 20881 3.95 3.90 16701
38 12.56 6.43 22041 4.34 4.11 17629
40 13.75 6.77 23201 4.75 4.33 18556
42 14.98 7.10 24361 5.17 4.54 19484
44 5.61 4.76 20412
46 6.07 4.98 21340
48 6.54 5.19 22268
50 7.02 5.41 23195
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