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-1xN =999 → It is recommended to increase the chemical's concentration, to use a pump with a greater flow rate, to use
a water-meter with a lower L/i factor.
-1/N =999 → It is recommended to decrease the chemical's concentration, to use a pump with a lower flow rate, to use a
water-meter with a greater L/i factor.
The calculation of cc / injection (i.e ml of dosed product for each stroke of the pump ) can be made in two ways . A quick
way , using the table below , and an empirical and accurate one that takes into account all the operating conditions of
the pump's work ( the viscosity of the product to be dosed for example... ) .
TABLE METHOD:
Read the pump model you bought , reading the characteristics of flow and pressure shown on the silver label on the
pump. You need to know the real working pressure on the system plant.
At this point you will read the value cc / injection at the intersection of column cc / inj and the line pressure in bar.
Example: pump model : 5 liters_10bar
System plant pressure: 7bar
Value found : cc / inj = 0.61
TABLE CC / INJECTION:
WMF 59-181
2LITRI_18BAR
Bar
l/h
0
5,5
1
4,7
2
3,8
3
3,4
4
3,2
5
3,0
6
2,9
7
2,7
8
2,5
9
2,4
10
2,3
11
2,2
12
2,1
13
2,0
14
1,9
15
1,8
16
1,7
17
1,7
18
1,6
Rev 3.0
CALCULATION CC/ INJECTION
WMF 59-182
5LITRI_10BAR
cc/injec
l/h
cc/injec
0,61
10,7
1,19
0,52
8,3
0,92
0,42
7,5
0,83
0,38
6,7
0,74
0,36
6,4
0,71
0,33
6,0
0,66
0,32
5,7
0,63
0,30
5,5
0,61
0,28
5,1
0,56
0,26
4,9
0,54
0,25
4,6
0,51
0,24
0,23
0,22
0,21
0,19
0,19
0,18
0,18
Cod. 00.009.307
WMF 59-183
WMF 59-184
8LITRI_8BAR
20LITRI_3BAR
l/h
cc/injec
l/h
14,4
1,59
25,9
11,3
1,26
22,7
10,3
1,14
20,9
9,3
1,03
20,2
9,1
1,01
8,4
0,93
8,1
0,89
7,9
0,88
7,4
0,82
cc/injec
2,87
2,52
2,32
2,24
47
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