Basic HTML Version
Page 156 • Catalog 207
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PIPE FRICTION LOSS
GPM
GPH
3⁄8"
1⁄2"
3⁄4"
1"
1 1⁄4"
1 1⁄2"
2"
2 1⁄2"
3"
4"
5"
6"
8"
10"
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
ft.
1
60
4.30
1.86
.26
2
120
15.00
4.78
1.21
.38
3
180
31.80
10.00
2.50
.77
4
240
54.90
17.10
4.21
1.30
.34
5
300
83.50
25.80
6.32
1.93
.51
.24
6
360
36.50
8.87
2.68
.70
.33
.10
7
420
48.70
11.80
3.56
.93
.44
.13
8
480
62.70
15.00
4.54
1.18
.56
.17
9
540
18.80
5.65
1.46
.69
.21
10
600
23.00
6.86
1.77
.83
.25
.11
.04
12
720
32.60
9.62
2.48
1.16
.34
.15
.05
15
900
49.70
14.70
3.74
1.75
.52
.22
.08
20
1,200
86.10
25.10
6.34
2.94
.87
.36
.13
25
1,500
38.60
9.65
4.48
1.30
.54
.19
30
1,800
54.60
13.60
6.26
1.82
.75
.26
35
2,100
73.40
18.20
8.37
2.42
1.00
.35
40
2,400
95.00
23.50
10.79
3.10
1.28
.44
45
2,700
30.70
13.45
3.85
1.60
.55
70
4,200
68.80
31.30
8.86
3.63
1.22
.35
100
6,000
62.20
17.40
7.11
2.39
.63
150
9,000
38.00
15.40
5.14
1.32
200
12,000
66.30
26.70
8.90
2.27
.736
.30
.08
250
15,000
90.70
42.80
14.10
3.60
1.20
.49
.13
300
18,000
58.50
19.20
4.89
1.58
.64
.16
.0542
350
21,000
79.20
26.90
6.72
2.18
.88
.23
.0719
400
24,000
103.00
33.90
8.47
2.72
1.09
.279
.0917
450
27,000
130.00
42.75
10.65
3.47
1.36
.348
.114
500
30,000
160.00
52.50
13.00
4.16
1.66
.424
.138
550
33,000
193.00
63.20
15.70
4.98
1.99
.507
.164
600
36,000
230.00
74.80
18.60
5.88
2.34
.597
.192
650
39,000
87.50
21.70
6.87
2.73
.694
.224
700
42,000
101.00
25.00
7.93
3.13
.797
.256
750
45,000
116.00
28.60
9.05
3.57
.907
.291
800
48,000
131.00
32.40
10.22
4.03
1.02
.328
850
51,000
148.00
36.50
11.50
4.53
1.147
.368
900
54,000
165.00
40.80
12.90
5.05
1.27
.410
950
57,000
184.00
45.30
14.30
5.60
1.41
.455
1000
60,000
204.00
50.20
15.80
6.17
1.56
.500
1
60
4.25
1.38
0.356
0.11
2
120
15.13
4.83
1.21
0.38
0.10
3
180
31.97
9.96
2.51
0.77
0.21
0.10
4
240
54.97
17.07
4.21
1.30
0.35
0.16
5
300
84.41
25.76
6.33
1.92
0.51
0.24
6
360
36.34
8.83
2.69
0.71
0.33
0.10
8
480
63.71
15.18
4.58
1.19
0.55
0.17
10
600
97.52
25.98
6.88
1.78
0.83
0.25
0.11
15
900
49.68
14.63
3.75
1.74
0.52
0.22
20
1,200
86.94
25.07
6.39
2.94
0.86
0.36
0.13
25
1,500
38.41
9.71
4.44
1.29
0.54
0.19
30
1,800
13.62
6.26
1.81
0.75
0.26
35
2,100
18.17
8.37
2.42
1.00
0.35
0.09
40
2,400
23.55
10.70
3.11
1.28
0.44
0.12
45
2,700
29.44
13.46
3.84
1.54
0.55
0.15
50
3,000
16.45
4.67
1.93
0.66
0.17
60
3,600
23.48
6.60
2.71
0.93
0.25
70
4,200
8.83
3.66
1.24
0.33
80
4,800
11.43
4.67
1.58
0.41
90
5,400
14.26
5.82
1.98
0.52
100
6,000
7.11
2.42
0.63
0.08
125
7,500
10.83
3.80
0.95
0.13
150
9,000
5.15
1.33
0.18
175
10,500
6.90
1.78
0.23
200
12,000
8.90
2.27
0.30
250
15,000
3.36
0.45
0.12
300
18,000
4.85
0.63
0.17
350
21,000
6.53
0.84
0.22
400
24,000
1.08
0.28
500
30,000
1.66
0.42
0.14
550
33,000
1.98
0.50
0.16
600
36,000
2.35
0.59
0.19
700
42,000
0.79
0.26
800
48,000
1.02
0.33
900
54,000
1.27
0.41
950
57,000
0.46
1000
60,000
0.50
Steel Pipe: Friction Loss (In Feet Of Head) Per 100 Ft.
Plastic Pipe: Friction Loss (In Feet Of Head) Per 100 Ft.