Pump Rental Booklet - Catalog - Page 140
Friction Loss
Smooth Bore Pipe
Losses in m/100m or ft/100ft
6
8
10
12
m3/h
I.G.P.M.
2
3
4
50
10
1.4
0.3
75
20
3
0.7
100
35
5
1
0.1
20
150
12
2.5
0.35
30
200
18
4.5
0.6
300
40
10
1.2
0.4
400
18
2.2
0.7
500
28
3.5
1.1
0.35
600
38
4.5
1.5
0.5
150
700
6.5
2
0.7
175
800
8
2.7
0.8
900
10
3.4
1
0.4
225
1000
13
4
1.4
0.5
250
1200
18
6
2
0.8
300
1400
28
8
3
1
350
1600
32
11
4
1.5
400
1800
36
14
4.5
2
450
2000
38
17
5
2.5
500
2500
25
9
4
650
3000
38
12
5
750
4000
21
8
1000
5000
m3/h x 4 gpm approx
32
13
1250
10
15
100
125
200
Friction head in feet per 100ft of pipe or metres per 100m of pipe
50
75
The above table refers to new pipes. Moderate corrosion may increase the
resistance by 25%, severe corrosion by 50% to 100%.
