| |
|
|
| |
| |
|
FRICTION LOSS IN SMOOTH BORE PIPE |
|
|
|
Losses In m/100m or ft/100ft |
|
I.G.P.M. |
2 |
3 |
4 |
6 |
8 |
10 |
12 |
M3/h
|
|
50 |
10 |
1 |
0.3 |
|
|
|
|
10 |
|
75 |
20 |
3 |
0.7 |
|
|
|
|
15 |
|
10 |
35 |
5 |
1 |
0.1 |
|
|
|
20 |
|
150 |
|
12 |
2.5 |
0.35 |
|
|
|
30 |
|
200 |
|
18 |
4.5 |
0.6 |
|
|
|
50 |
|
300 |
|
40 |
10 |
1.2 |
0.4 |
|
|
75 |
|
400 |
|
|
18 |
2.2 |
0.7 |
|
|
100 |
|
500 |
|
|
28 |
3.5 |
1.1 |
0.35 |
|
125 |
|
600 |
|
|
38 |
4.5 |
1.5 |
0.5 |
|
150 |
|
700 |
|
|
|
6.5 |
2 |
0.7 |
|
175 |
|
800 |
|
|
|
8 |
2.7 |
0.8 |
|
200 |
|
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 |
|
|
|
|
|
32 |
13 |
1250 |
|
m3/h x 4 g.p.m. approx. |
|
The above table refers to new pipe. Moderate corrosion
may increase the resistance by 25%, severe corrosion by 50% to 100%. |
|
|
|
|
