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1.3.3 Pump performance
Performance data at maximum pump counter-pressure
*
Observe the maximum permissible temperatures and that the friction loss increases with the viscosity of
the dosing medium.
** The maximum dosing flow of HV-variant pumps is up to 10 % lower.
*** At counter-pressures lower than 10 bar, the maximum dosing flow of the DDI 0.4-10 gradually increases to
up to 1 l/h.
Pump type
Normal operation
Slow-mode operation
Q**
p max.*
Max.
stroke
rate
Q**
p max.*
Max.
stroke
rate
Standard
With
Plus
3
system
Standard
With
Plus
3
system
[l/h]
[l/h]
[bar]
[n/min]
[l/h]
[l/h]
[bar]
[n/min]
DDI 0.4-10
0.4***
0.4***
10
180
0.26***
0.26***
10
120
DDI 2.2-16
2.2
1.9
16
180
1.5
1.2
16
120
DDI 2.5-10
2.5
2.2
10
180
1.7
1.4
10
120
DDI 5.5-10
5.5
4.9
10
180
3.7
3.2
10
120
DDI 13.8-4
13.8
—
4
180
9.2
—
4
120
DDI 20-3
20
—
3
180
13.3
—
3
120
Note
The pump can be operated in the range
between 1 % and 100 % of the
maximum dosing capacity.
Note
The maximum display indication is
higher than the nominal capacity of the
pump because it refers to the default
setting.
Содержание DDI 209
Страница 1: ...GRUNDFOS INSTRUCTIONS DDI 209 Dosing pump Installation and operating instructions ...
Страница 73: ...73 ...
