DARLEY ZSP - Page 46

Prepared by: EAP
Revised by: JAF Rev. #:3
Approved by: MCR 3 Date: 1/29/07
Rev. Date: 5/1/13
1201502
Losses in rough walled, rubber hose may be 50% higher than values given above.
TABLE NO. 7
Friction Loss in 15-year-old Steel Pipe
Loss in PSI per 100 Feet of Pipe
PIPE SIZE
1/8
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6
8
G.P.M.
1
52.0
12.0
2.8
0.9
2
45.0
10.0
3.2
4.0
5
55.0
18.0
4.5
1.4
0.4
10
64.0
16.0
5.0
1.3
0.6
15
135.0
34.0
11.0
2.7
1.3
0.5
20
59.0
18.0
4.7
2.2
0.8
25
89.0
27.0
7.1
3.4
1.2
30
125.0
39.0
10.0
4.7
1.7
0.6
35
51.0
13.0
6.3
2.2
0.7
40
66.0
17.0
8.0
2.9
0.9
45
82.0
21.0
10.0
3.6
1.2
50
99.0
26.0
12.0
4.3
1.4
0.6
60
140.0
38.0
17.0
6.1
2.0
0.8
70
49.0
23.0
8.0
2.7
1.1
80
63.0
29.0
10.0
3.4
1.5
90
78.0
36.0
13.0
4.3
1.8
100
96.0
44.0
15.0
5.1
2.2
0.5
125
144.0
66.0
24.0
7.8
3.3
0.8
150
93.0
33.0
11.0
4.6
1.1
175
125.0
44.0
15.0
6.1
1.5
200
56.0
19.0
7.8
1.9
250
84.0
28.0
12.0
2.9
300
114.0
40.0
16.0
4.0
0.6
350
53.0
22.0
5.4
0.8
400
68.0
28.0
6.9
1.0
450
84.0
35.0
8.6
1.2
500
102.0
42.0
10.0
1.4
0.4
600
60.0
15.0
2.1
0.6
800
25.0
3.5
1
1000
37.0
5.2
1.3
1500
11.0
2.7
2000
19.0
4.7
2500
29.0
7.1
3000
10