23
WATER PRESSURE DROP
The graph below illustrates the loss of head values in
kPa
depending on the flow rate in
liters/second
. The operating range is
delimited by the minimum and maximum values given in the next table.
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Water flow rate (l/s)
W
ater pressure drop (kPa)
1
2
6
7
8
5
4
3
Limits to operation
Model
150
165
180
205
230
260
285
315
UM
NOTES
Graph reference
1
2
3
4
5
6
7
8
Q=
Water flow rate
ΔΔ
p=
Loss of head
Lower limit value
Q
3.77
4.25
4.12
4.78
5.49
6.06
6.50
7.00
l\s
ΔΔ
p
10
kPa
Upper limit value
Q
14.62
16.44
15.97
18.51
21.25
23.36
25.1
26.93
l\s
ΔΔ
p
150
kPa
Maximum operating
pressure on wet side
600
kPa
Содержание 150.4
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