hunter_catalog_dom

TECHNICAL INFORMATION
FRICTION LOSS CHARTS
TYPE L COPPER TUBING
ASTM B88 C=140 • PSI loss per 100 ft. of pipe
Nominal Size
Pipe ID
Pipe OD
Avg. Wall
Flow
(GPM)
½"
0.545
0.625
0.040
Velocity
FPS
PSI
Loss
⅝"
0.666
0.750
0.042
Velocity
FPS
PSI
Loss
¾"
0.785
0.875
0.045
Velocity
FPS
PSI
Loss
1"
1.025
1.125
0.050
Velocity
FPS
PSI
Loss
1¼"
1.265
1.375
0.055
Velocity
FPS
PSI
Loss
1½"
1.505
1.625
0.060
Velocity
FPS
PSI
Loss
2"
1.985
2.125
0.070
Velocity
FPS
PSI
Loss
2½"
2.465
2.625
0.080
Velocity
FPS
PSI
Loss
3"
2.945
3.125
0.090
Velocity
FPS
1 1.37 0.93 0.92 0.35 0.66 0.16 0.39 0.04 0.25 0.02
2 2.75 3.35 1.84 1.26 1.32 0.57 0.78 0.15 0.51 0.06
3 4.12 7.09 2.76 2.67 1.99 1.20 1.17 0.33 0.76 0.12
4 5.49 12.09 3.68 4.56 2.65 2.05 1.55 0.56 1.02 0.20
5 6.87 18.27 4.60 6.89 3.31 3.09 1.94 0.85 1.27 0.30
6 8.24 25.61 5.52 9.65 3.97 4.34 2.33 1.18 1.53 0.43 1.08 0.18
7 9.62 34.07 6.44 12.84 4.63 5.77 2.72 1.58 1.78 0.57 1.26 0.24
8 10.99 43.63 7.36 16.45 5.30 7.39 3.11 2.02 2.04 0.72 1.44 0.31
9 12.36 54.26 8.28 20.45 5.96 9.19 3.50 2.51 2.29 0.90 1.62 0.39
10 13.74 65.95 9.20 24.86 6.62 11.17 3.88 3.05 2.55 1.10 1.80 0.47
12 11.04 34.85 7.95 15.66 4.66 4.28 3.06 1.54 2.16 0.66 1.24 0.17
14 12.88 46.36 9.27 20.83 5.44 5.69 3.57 2.04 2.52 0.88 1.45 0.23
16 14.72 59.37 10.59 26.68 6.21 7.28 4.08 2.62 2.88 1.12 1.66 0.29
18 16.56 73.84 11.92 33.18 6.99 9.06 4.59 3.25 3.24 1.40 1.86 0.36
20 13.24 40.33 7.77 11.01 5.10 3.96 3.60 1.70 2.07 0.44
22 14.57 48.11 8.54 13.14 5.61 4.72 3.96 2.03 2.28 0.53 1.48 0.18 1.03 0.08
24 15.89 56.53 9.32 15.44 6.12 5.55 4.32 2.38 2.49 0.62 1.61 0.22 1.13 0.09
26 10.10 17.90 6.63 6.43 4.68 2.76 2.69 0.72 1.75 0.25 1.22 0.11
28 10.87 20.54 7.14 7.38 5.04 3.17 2.90 0.82 1.88 0.29 1.32 0.12
30 11.65 23.33 7.65 8.38 5.40 3.60 3.11 0.94 2.01 0.33 1.41 0.14
32 12.43 26.30 8.16 9.45 5.76 4.06 3.31 1.05 2.15 0.37 1.51 0.15
34 13.20 29.42 8.67 10.57 6.12 4.54 3.52 1.18 2.28 0.41 1.60 0.17
36 13.98 32.71 9.18 11.75 6.48 5.05 3.73 1.31 2.42 0.46 1.69 0.19
38 14.76 36.15 9.69 12.99 6.84 5.58 3.93 1.45 2.55 0.51 1.79 0.21
40 15.53 39.75 10.20 14.28 7.21 6.13 4.14 1.59 2.69 0.56 1.88 0.23
42 16.31 43.51 10.71 15.63 7.57 6.71 4.35 1.75 2.82 0.61 1.98 0.26
44 11.22 17.04 7.93 7.32 4.56 1.90 2.95 0.66 2.07 0.28
46 11.73 18.50 8.29 7.94 4.76 2.07 3.09 0.72 2.16 0.30
48 12.24 20.02 8.65 8.60 4.97 2.24 3.22 0.78 2.26 0.33
50 12.75 21.59 9.01 9.27 5.18 2.41 3.36 0.84 2.35 0.35
55 14.02 25.76 9.91 11.06 5.70 2.88 3.69 1.00 2.59 0.42
60 15.30 30.26 10.81 13.00 6.21 3.38 4.03 1.18 2.82 0.50
65 16.57 35.10 11.71 15.07 6.73 3.92 4.36 1.37 3.06 0.57
70 17.85 40.26 12.61 17.29 7.25 4.50 4.70 1.57 3.29 0.66
75 13.51 19.65 7.77 5.11 5.04 1.78 3.53 0.75
80 14.41 22.14 8.28 5.76 5.37 2.01 3.76 0.84
85 15.31 24.77 8.80 6.44 5.71 2.25 4.00 0.94
90 16.21 27.54 9.32 7.16 6.04 2.50 4.23 1.05
95 17.11 30.44 9.84 7.91 6.38 2.76 4.47 1.16
100 18.01 33.47 10.35 8.70 6.71 3.03 4.70 1.28
110 11.39 10.38 7.39 3.62 5.17 1.52
120 12.43 12.20 8.06 4.25 5.65 1.79
130 13.46 14.15 8.73 4.93 6.12 2.07
140 14.50 16.23 9.40 5.66 6.59 2.38
150 15.53 18.44 10.07 6.43 7.06 2.70
160 16.57 20.78 10.74 7.24 7.53 3.05
170 17.60 23.25 11.41 8.11 8.00 3.41
180 12.09 9.01 8.47 3.79
190 12.76 9.96 8.94 4.19
200 13.43 10.95 9.41 4.61
220 14.77 13.07 10.35 5.50
240 16.12 15.35 11.29 6.46
260 17.46 17.80 12.23 7.49
280 18.80 20.42 13.17 8.59
300 14.11 9.76
320 15.05 11.00
340 15.99 12.31
360 16.94 13.69
380 17.88 15.13
400
420
440
460
480
500
PSI
Loss
TECHNICAL
Notes: Shaded area represents velocities over 7 fps. Use with caution where water hammer is a concern.
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