How to Guide
50
Plastics Technical Manual
0.28
0.56
3.14
5.76
10.96
23.23
39.57
0.02
0.03
0.03
0.04
0.05
0.07
0.09
0.10
0.12
0.14
0.18
0.27
0.37
0.50
0.63
0.96
1.34
1.79
2.28
2.84
3.45
7.31
0.29
0.91
1.66
3.16
6.69
11.40
17.23
24.15
32.13
0.02
0.03
0.04
0.04
0.05
0.06
0.07
0.11
0.16
0.21
0.27
0.41
0.57
0.76
0.97
1.21
1.47
3.12
5.31
0.02
0.14
0.25
0.47
1.00
1.71
2.59
3.63
4.83
6.18
7.69
9.34
13.10
17.42
19.80
22.31
27.75
33.73
0.027
0.04
0.05
0.075
0.09
0.11
0.14
0.29
0.50
0.76
1.06
1.81
2.74
3.84
0.01
0.045
0.08
0.16
0.33
0.57
0.86
1.21
1.61
2.06
2.56
3.11
4.36
5.80
6.60
7.43
9.25
11.24
0.04
0.04
0.05
0.06
0.13
0.22
0.34
0.46
0.79
1.20
1.67
2.22
2.86
3.54
1.00
2.00
11.25
20.66
39.34
0.02
0.04
0.05
0.07
0.09
0.11
0.14
0.19
0.25
0.29
0.32
0.40
0.49
0.74
1.04
1.39
1.77
2.68
3.75
5.00
6.39
7.95
9.66
0.085
0.27
0.49
0.92
1.96
3.34
5.04
7.07
9.41
12.05
14.98
18.21
0.03
0.037
0.04
0.06
0.07
0.11
0.16
0.21
0.27
0.33
0.41
0.86
1.47
2.23
3.11
5.30
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Friction Loss
Pounds Per
Square Inch
Friction Head
Feet
Velocity
Feet Per Second
Gallons
Per Minute
FRICTION LOSS AND FLOW VELOCITY FOR SDR 26 THERMOPLASTIC PIPE
1
⁄2
in.
3
⁄4
in.
1 in.
1
1
⁄4 in. 1
1
⁄2 in.
2 in.
2
1
⁄2 in. 3 in.
12 in.
10 in.
8 in.
6 in.
5 in.
4 in.
(Friction head and friction loss are per 100 feet of pipe.)
NOTICE: Flow velocity should not exceed 5 feet per second. Velocities in excess of 5 feet per second may result in system failure and property damage.
1
2
5
7
10
15
20
25
30
35
40
45
50
60
70
75
80
90
100
125
150
175
200
250
300
350
400
450
500
750
1000
1250
1500
2000
2500
3000
3500
4000
4500
0.84
1.67
4.17
5.84
8.34
0.48
0.60
0.72
0.84
0.96
1.08
1.20
1.44
1.67
1.79
1.91
2.15
2.39
2.99
3.59
4.19
4.79
5.98
7.18
8.38
9.57
10.77
11.96
0.43
0.86
4.87
8.95
17.03
0.009
0.017
0.022
0.030
0.039
0.048
0.061
0.082
0.11
0.13
0.14
0.17
0.21
0.33
0.45
0.60
0.77
1.16
1.62
2.17
2.77
3.44
4.18
0.50
0.99
2.47
3.46
4.94
7.40
9.87
0.47
0.55
0.63
0.71
0.78
0.94
1.10
1.18
1.25
1.41
1.57
1.96
2.35
2.74
3.13
3.92
4.70
5.49
6.27
7.05
7.84
11.75
0.12
0.24
1.36
2.49
4.74
10.06
17.13
0.009
0.013
0.013
0.017
0.022
0.030
0.039
0.043
0.052
0.061
0.078
0.12
0.16
0.22
0.27
0.42
0.58
0.77
0.99
1.23
1.49
3.17
0.59
1.48
2.08
2.96
4.44
5.92
7.40
8.88
10.36
0.55
0.66
0.77
0.83
0.88
0.99
1.10
1.39
1.66
1.94
2.21
2.76
3.31
3.87
4.42
4.97
5.52
8.28
11.05
0.13
0.39
0.72
1.37
2.90
4.94
7.46
10.46
13.91
0.009
0.013
0.017
0.017
0.022
0.026
0.030
0.047
0.069
0.091
0.12
0.18
0.25
0.33
0.42
0.52
0.64
1.35
2.30
0.36
0.90
1.25
1.79
2.68
3.58
4.47
5.36
6.26
7.15
8.04
8.94
0.66
0.83
0.98
1.14
1.30
1.63
1.95
2.28
2.61
2.93
3.26
4.89
6.51
8.15
9.77
13.03
0.037
0.117
0.21
0.40
0.85
1.45
2.18
3.06
4.07
5.22
6.49
7.88
0.012
0.015
0.017
0.026
0.030
0.048
0.069
0.091
0.12
0.14
0.18
0.37
0.64
0.96
1.35
2.29
0.27
0.68
0.96
1.36
2.04
2.72
3.40
4.08
4.76
5.44
6.12
6.80
8.16
9.52
10.19
10.87
12.23
13.59
0.83
1.05
1.26
1.47
1.68
1.89
2.10
3.14
4.19
5.27
6.29
8.38
10.48
12.58
0.0087
0.059
0.104
0.20
0.43
0.74
1.12
1.57
2.09
2.68
3.33
4.04
5.67
7.54
8.57
9.66
12.02
14.61
0.012
0.017
0.022
0.033
0.039
0.048
0.061
0.13
0.22
0.33
0.46
0.78
1.19
1.66
0.17
0.44
0.61
0.87
1.30
1.73
2.16
2.60
3.03
3.46
3.90
4.33
5.19
6.06
6.49
6.92
7.79
8.66
1.04
1.19
1.34
1.49
2.23
2.98
3.73
4.47
5.96
7.45
8.94
10.43
11.92
13.41
0.004
0.020
0.035
0.069
0.14
0.25
0.37
0.52
0.70
0.89
1.11
1.35
1.89
2.51
2.86
3.22
4.01
4.87
0.017
0.017
0.022
0.026
0.056
0.095
0.15
0.20
0.34
0.52
0.72
0.96
1.24
1.53
0.30
0.42
0.59
0.88
1.18
1.47
1.77
2.06
2.35
2.65
2.94
3.53
4.12
4.41
4.71
5.30
5.89
7.36
8.83
10.31
0.025
0.035
0.06
0.13
0.22
0.34
0.47
0.63
0.81
1.00
1.22
1.71
2.27
2.58
2.91
3.62
4.39
6.65
9.31
12.40
0.011
0.015
0.026
0.056
0.095
0.15
0.20
0.27
0.35
0.43
0.53
0.74
0.98
1.12
1.26
1.57
1.90
2.88
4.03
5.37
0.20
0.28
0.40
0.59
0.79
0.99
1.19
1.39
1.59
1.78
1.98
2.38
2.78
2.97
3.17
3.57
3.97
4.96
5.95
6.94
7.93
9.92
0.01
0.014
0.02
0.05
0.09
0.13
0.18
0.24
0.31
0.38
0.47
0.65
0.87
0.99
1.11
1.38
1.68
2.54
3.56
4.74
6.07
9.18
0.0045
0.0063
0.009
0.022
0.039
0.056
0.078
0.10
0.13
0.16
0.20
0.28
0.38
0.43
0.48
0.60
0.73
1.10
1.54
2.05
2.63
3.98