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Part III: Source Side Design / Closed Loop Installation Guidelines
Table 3-3a: Polyethylene Pressure Drop per 100ft of Pipe
Antifreeze (30°F [-1°C] EWT): 20% Methanol by volume solution - freeze protected to 15°F [-9.4°F]
3/4" IPS SDR11
Flow
Vel
Rate
PD (ft)
Re
(ft/s)
1
0.36
0.55
1123
2
1.22
1.10
2245
3
2.48
1.66
3388
4
4.11
2.21
4511
5
6.08
2.76
5633
6
8.36
3.31
6756
7
10.95
3.87
7899
8
13.83
4.42
9022
9
17.00
4.97
10144
10
20.44
5.52
11267
11
24.14
6.08
12410
12
28.12
6.63
13532
13
32.35
7.18
14655
14
0
0
0
15
0
0
0
16
0
0
0
17
0
0
0
18
0
0
0
19
0
0
0
20
0
0
0
21
0
0
0
22
0
0
0
23
0
0
0
24
0
0
0
25
0
0
0
26
0
0
0
28
0
0
0
30
0
0
0
32
0
0
0
34
0
0
0
36
0
0
0
38
0
0
0
40
0
0
0
42
0
0
0
44
0
0
0
46
0
0
0
48
0
0
0
50
0
0
0
Bryant Geothermal Heat Pump Systems
1" IPS SDR11
1-1/4" IPS SCH40
Vel
(ft)
Re
PD (ft)
(ft/s)
0.12
0.35
895
0.04
0.42
0.70
1789
0.13
0.85
1.06
2709
0.26
1.41
1.41
3604
0.43
2.09
1.76
4499
0.64
2.87
2.11
5393
0.88
3.76
2.47
6314
1.16
4.75
2.82
7208
1.46
5.84
3.17
8103
1.80
7.02
3.52
8997
2.16
8.29
3.87
9892
2.55
9.65
4.23
10812
2.98
11.11
4.58
11707
3.42
12.65
4.93
12602
3.90
14.27
5.28
13496
4.39
15.97
5.64
14416
4.92
17.76
5.99
15311
5.47
19.63
6.34
16206
6.05
21.58
6.69
17100
6.65
23.61
7.04
17995
7.27
25.71
7.40
18915
7.92
27.89
7.75
19810
8.59
30.15
8.10
20704
9.29
0
0
0
10.00
0
0
0
10.75
0
0
0
11.51
0
0
0
13.10
0
0
0
14.78
0
0
0
16.56
0
0
0
18.41
0
0
0
20.34
0
0
0
22.36
0
0
0
24.46
0
0
0
26.64
0
0
0
28.90
0
0
0
31.24
0
0
0
0
0
0
0
0
Water-to-Water System Design Guide
1-1/2" IPS SCH40
Vel
Vel
Re
PD
(ft/s)
(ft/s)
0.21
688
0.02
0.16
0.43
1408
0.06
0.32
0.64
2096
0.13
0.47
0.86
2817
0.21
0.63
1.07
3504
0.31
0.79
1.29
4225
0.42
0.95
1.50
4913
0.56
1.10
1.72
5633
0.70
1.26
1.93
6321
0.86
1.42
2.15
7042
1.04
1.58
2.36
7729
1.23
1.73
2.57
8417
1.43
1.89
2.79
9138
1.65
2.05
3.00
9826
1.87
2.21
3.22
10546
2.11
2.36
3.43
11234
2.37
2.52
3.65
11955
2.63
2.68
3.86
12642
2.91
2.84
4.08
13363
3.20
2.99
4.29
14051
3.50
3.15
4.50
14738
3.81
3.31
4.72
15459
4.13
3.47
4.93
16147
4.47
3.62
5.15
16867
4.81
3.78
5.36
17555
5.17
3.94
5.58
18276
5.53
4.10
6.01
19684
6.30
4.41
6.44
21092
7.11
4.73
6.86
22468
7.96
5.04
7.29
23876
8.85
5.36
7.72
25285
9.78
5.67
8.15
26693
10.75
5.99
8.58
28101
11.76
6.30
9.01
29510
12.81
6.62
9.44
30918
13.90
6.93
9.87
32326
15.02
7.25
0
0
16.18
7.57
0
0
17.38
7.88
2" IPS SCH40
Vel
Re
PD
Re
(ft/s)
611
0.01
0.10
491
1223
0.02
0.19
932
1796
0.04
0.29
1423
2407
0.06
0.38
1864
3019
0.09
0.48
2355
3630
0.13
0.57
2796
4203
0.17
0.67
3287
4815
0.22
0.76
3728
5426
0.26
0.86
4219
6037
0.32
0.96
4709
6610
0.37
1.05
5151
7222
0.44
1.15
5642
7833
0.50
1.24
6083
8445
0.57
1.34
6574
9018
0.65
1.43
7015
9629
0.72
1.53
7506
10240
0.80
1.63
7996
10852
0.89
1.72
8438
11425
0.98
1.82
8928
12036
1.07
1.91
9370
12648
1.16
2.01
9860
13259
1.26
2.10
10302
13832
1.36
2.20
10793
14444
1.47
2.29
11234
15055
1.58
2.39
11725
15666
1.69
2.49
12215
16851
1.92
2.68
13147
18074
2.17
2.87
14079
19258
2.43
3.06
15011
20481
2.70
3.25
15944
21666
2.99
3.44
16876
22888
3.28
3.63
17808
24073
3.59
3.82
18740
25296
3.91
4.02
19721
26480
4.24
4.21
20653
27703
4.58
4.40
21585
28926
4.94
4.59
22517
30110
5.30
4.78
23449
47
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