Water Flow, Velocity, Frictional Head Losses, Irrigation Area & Pump
|
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size
|
Water flow – capacity
|
Velocity meter |
Frictional Head |
Number |
Irrigable |
Pump Requirement
|
||||||||
Ltr. per second
|
Cusec (Cu-Ft/Sec)
|
Flow |
Head |
HP
|
||||||||||
mm
|
inch
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
|||||
20
|
0.50
|
0.06
|
0.18
|
0.002
|
0.006
|
0.25
|
0.75
|
7.5
|
52
|
300
|
0.24
|
0.12
|
20
|
2
|
25
|
0.75
|
0.08
|
0.38
|
0.003
|
0.013
|
0.25
|
1
|
5.75
|
65
|
250
|
0.46
|
0.23
|
20
|
2
|
32
|
1.00
|
0.16 |
0.6
|
0.005
|
0.021
|
0.25
|
1
|
4.2
|
48
|
200
|
0.6
|
0.38
|
20
|
2
|
40
|
1.25
|
0.26
|
0.95
|
0.009
|
0.033
|
0.25
|
1
|
2
|
36
|
170
|
1.2
|
0.6
|
20
|
2
|
50
|
1.50
|
0.42
|
1.2
|
0.014
|
0.042
|
0.25
|
1.25
|
2.3
|
55
|
125
|
1.6
|
0.8
|
25
|
2
|
63
|
2.00
|
0.70
|
4
|
0.024
|
0.141
|
0.25
|
1.5
|
1.7
|
42
|
110
|
4.7
|
2.35
|
25
|
2
|
75
|
2.50
|
1.00
|
5
|
0.035
|
0.176
|
0.25
|
1.5
|
1.3
|
34
|
90
|
6
|
3
|
25
|
3
|
90
|
3.00
|
1.50
|
7.5
|
0.052
|
0.264
|
0.25
|
1.5
|
1.1
|
27
|
70
|
9
|
4.5
|
25
|
5
|
110
|
4.00
|
2.20
|
12
|
0.077
|
0.423
|
0.25
|
1.5
|
0.8
|
22
|
50
|
14
|
7
|
25
|
5
|
125
|
4.50
|
5.00
|
15
|
0.176
|
0.529
|
0.5
|
1.5
|
2.2
|
18
|
39
|
20
|
10
|
25
|
7.5
|
140
|
5.00
|
7.00
|
19
|
0.247
|
0.671
|
0.5
|
1.5
|
2
|
15
|
28
|
26
|
13
|
25
|
7.5
|
160
|
6.00
|
9.00
|
25
|
0.317
|
0.883
|
0.5
|
1.5
|
1.
|
13
|
25
|
34
|
17
|
28
|
10
|
180
|
7.00
|
12.00
|
32
|
0.423
|
1.13
|
0.5
|
1.5
|
1.4
|
12
|
20
|
4
|
22
|
28
|
12.5
|
200
|
8.00
|
15.00
|
40
|
0.529
|
1.412
|
0.5
|
1.5
|
1.3
|
9
|
13
|
55
|
27
|
28
|
15
|
225
|
9.00
|
18.00
|
50
|
0.635
|
1.766
|
0.5
|
1.5
|
1.1
|
8.5
|
10
|
68
|
34
|
30
|
20
|
250
|
10.00
|
22.00
|
62
|
0.771
|
2.19
|
0.5
|
1.5
|
0.95
|
7.5
|
8
|
84
|
42
|
30
|
25
|
280
|
11.00
|
28.00
|
70
|
0.989
|
2.154
|
0.5
|
1.5
|
0.85
|
7
|
6
|
98
|
49
|
30
|
30
|
315
|
12.00
|
52.00
|
95
|
1.836
|
3.355
|
0.75
|
1.5
|
1.5
|
5.75
|
4
|
147
|
73
|
30
|
40
|
355
|
14.00
|
67.00
|
190
|
2.366
|
3.391
|
0.75
|
1.5
|
1.3
|
5
|
3
|
163
|
81
|
35
|
60
|
400
|
16.00
|
85.00
|
350
|
3.000
|
5.651
|
0.75
|
1.5
|
1.1
|
4.2
|
2
|
245
|
122
|
35
|
80
|
450
|
18.00
|
110.00
|
600
|
3.885
|
7.064
|
0.75
|
1.5
|
0.95
|
3.6
|
1
|
310
|
155
|
35
|
100
|