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R e s i d e n t i a l D i g i t a l H & V - Tr a n q u i l i t y
®
2 2 D i g i t a l ( T Z ) S e r i e s - 6 0 H z H F C - 4 1 0 A
C r e a t e d : 2 6 O c t . , 2 0 1 1 B
52
G e o t h e r m a l H e a t P u m p S y s t e m s
Pressure Drop
Table 15a: 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]
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
0.36
0.55
1123
0.12
0.35
895
0.04
0.21
688
0.02
0.16
611
0.01
0.10
491
2
1.22
1.10
2245
0.42
0.70
1789
0.13
0.43
1408
0.06
0.32
1223
0.02
0.19
932
3
2.48
1.66
3388
0.85
1.06
2709
0.26
0.64
2096
0.13
0.47
1796
0.04
0.29
1423
4
4.11
2.21
4511
1.41
1.41
3604
0.43
0.86
2817
0.21
0.63
2407
0.06
0.38
1864
5
6.08
2.76
5633
2.09
1.76
4499
0.64
1.07
3504
0.31
0.79
3019
0.09
0.48
2355
6
8.36
3.31
6756
2.87
2.11
5393
0.88
1.29
4225
0.42
0.95
3630
0.13
0.57
2796
7
10.95
3.87
7899
3.76
2.47
6314
1.16
1.50
4913
0.56
1.10
4203
0.17
0.67
3287
8
13.83
4.42
9022
4.75
2.82
7208
1.46
1.72
5633
0.70
1.26
4815
0.22
0.76
3728
9
17.00
4.97
10144
5.84
3.17
8103
1.80
1.93
6321
0.86
1.42
5426
0.26
0.86
4219
10
20.44
5.52
11267
7.02
3.52
8997
2.16
2.15
7042
1.04
1.58
6037
0.32
0.96
4709
11
24.14
6.08
12410
8.29
3.87
9892
2.55
2.36
7729
1.23
1.73
6610
0.37
1.05
5151
12
28.12
6.63
13532
9.65
4.23
10812
2.98
2.57
8417
1.43
1.89
7222
0.44
1.15
5642
13
32.35
7.18
14655
11.11
4.58
11707
3.42
2.79
9138
1.65
2.05
7833
0.50
1.24
6083
14
0
0
0
12.65
4.93
12602
3.90
3.00
9826
1.87
2.21
8445
0.57
1.34
6574
15
0
0
0
14.27
5.28
13496
4.39
3.22
10546
2.11
2.36
9018
0.65
1.43
7015
16
0
0
0
15.97
5.64
14416
4.92
3.43
11234
2.37
2.52
9629
0.72
1.53
7506
17
0
0
0
17.76
5.99
15311
5.47
3.65
11955
2.63
2.68
10240
0.80
1.63
7996
18
0
0
0
19.63
6.34
16206
6.05
3.86
12642
2.91
2.84
10852
0.89
1.72
8438
19
0
0
0
21.58
6.69
17100
6.65
4.08
13363
3.20
2.99
11425
0.98
1.82
8928
20
0
0
0
23.61
7.04
17995
7.27
4.29
14051
3.50
3.15
12036
1.07
1.91
9370
21
0
0
0
25.71
7.40
18915
7.92
4.50
14738
3.81
3.31
12648
1.16
2.01
9860
22
0
0
0
27.89
7.75
19810
8.59
4.72
15459
4.13
3.47
13259
1.26
2.10
10302
23
0
0
0
30.15
8.10
20704
9.29
4.93
16147
4.47
3.62
13832
1.36
2.20
10793
24
0
0
0
0
0
0
10.00
5.15
16867
4.81
3.78
14444
1.47
2.29
11234
25
0
0
0
0
0
0
10.75
5.36
17555
5.17
3.94
15055
1.58
2.39
11725
26
0
0
0
0
0
0
11.51
5.58
18276
5.53
4.10
15666
1.69
2.49
12215
28
0
0
0
0
0
0
13.10
6.01
19684
6.30
4.41
16851
1.92
2.68
13147
30
0
0
0
0
0
0
14.78
6.44
21092
7.11
4.73
18074
2.17
2.87
14079
32
0
0
0
0
0
0
16.56
6.86
22468
7.96
5.04
19258
2.43
3.06
15011
34
0
0
0
0
0
0
18.41
7.29
23876
8.85
5.36
20481
2.70
3.25
15944
36
0
0
0
0
0
0
20.34
7.72
25285
9.78
5.67
21666
2.99
3.44
16876
38
0
0
0
0
0
0
22.36
8.15
26693
10.75
5.99
22888
3.28
3.63
17808
40
0
0
0
0
0
0
24.46
8.58
28101
11.76
6.30
24073
3.59
3.82
18740
42
0
0
0
0
0
0
26.64
9.01
29510
12.81
6.62
25296
3.91
4.02
19721
44
0
0
0
0
0
0
28.90
9.44
30918
13.90
6.93
26480
4.24
4.21
20653
46
0
0
0
0
0
0
31.24
9.87
32326
15.02
7.25
27703
4.58
4.40
21585
48
0
0
0
0
0
0
0
0
0
16.18
7.57
28926
4.94
4.59
22517
50
0
0
0
0
0
0
0
0
0
17.38
7.88
30110
5.30
4.78
23449