How to Guide
51
1
2
3
4
5
6
7
8
9
10
15
20
25
30
35
40
45
50
55
60
70
80
90
100
125
1.71
3.42
5.13
6.83
8.54
10.25
11.96
13.67
15.38
17.08
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
Gallons
Per Minute
FRICTION LOSS AND FLOW VELOCITY FOR SDR 11 CTS CPVC THERMOPLASTIC PIPE
(Friction head and friction loss are per 100 feet of pipe.)
NOTICE: Flow velocity should not exceed 8 feet per second. Velocities in excess of 8 feet per second may result in system failure and property damage.
1
⁄2
in.
Pressure
Loss PSI
Per 100 Ft.
3.19
11.53
24.43
41.62
62.91
88.18
117.32
150.23
186.85
227.11
1.38
5.00
10.59
18.04
27.27
38.23
50.86
65.13
81.00
98.45
0.80
1.60
2.40
3.20
4.00
4.79
5.59
6.39
7.19
7.99
11.99
15.98
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
3
⁄4
in.
Pressure
Loss PSI
Per 100 Ft.
0.50
1.82
3.85
6.55
9.91
13.89
18.47
23.66
29.42
35.76
75.78
129.11
0.22
0.79
1.67
2.84
4.29
6.02
8.01
10.26
12.76
15.50
32.85
55.97
0.48
0.96
1.44
1.93
2.41
2.89
3.37
3.85
4.33
4.82
7.22
9.63
12.04
14.45
16.86
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
1 in.
Pressure
Loss PSI
Per 100 Ft.
0.15
0.53
1.12
1.91
2.89
4.05
5.39
6.90
8.58
10.43
22.11
37.67
56.94
79.82
106.19
0.06
0.23
0.49
0.83
1.25
1.76
2.34
2.99
3.72
4.52
9.58
16.33
24.69
34.60
46.03
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
1
1
⁄4
in.
Pressure
Loss PSI
Per 100 Ft.
1.09
3.94
8.35
14.23
21.51
30.15
40.11
51.37
63.89
77.66
92.65
0.47
1.71
3.62
6.17
9.33
13.07
17.39
22.27
27.70
33.66
40.16
1.16
2.31
3.47
4.63
5.78
6.94
8.09
9.25
10.41
11.56
12.72
13.88
16.19
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
1
1
⁄2
in.
Pressure
Loss PSI
Per 100 Ft.
0.49
1.75
3.71
6.33
9.56
13.40
17.83
22.83
28.40
34.52
41.18
48.38
64.37
0.21
0.76
1.61
2.74
4.15
5.81
7.73
9.90
12.31
14.96
17.85
20.97
27.90
0.68
1.35
2.03
2.70
3.38
4.05
4.73
5.40
6.08
6.75
7.43
8.10
9.46
10.61
12.16
13.51
16.89
Head Loss
Feet of Water
Per 100 Ft.
Velocity
Feet Per Second
2
in.
Pressure
Loss PSI
Per 100 Ft.
0.13
0.49
1.03
1.76
2.66
3.73
4.96
6.35
7.89
9.60
11.45
13.45
17.89
22.91
28.50
34.64
52.37
0.06
0.21
0.45
0.76
1.15
1.62
2.15
2.75
3.42
4.16
4.96
5.83
7.76
9.93
12.35
15.02
22.70
1.61
3.23
4.84
6.46
8.07
9.68
11.30
12.91
14.52
16.14
17.75