Grundfos DMX 221 Installations- Und Bedienungsanleitung Seite 41

• maximum counterpressure
• dosing medium with viscosity and density similar to those of water
• flooded suction 0.5 m
• fully deaerated dosing head
• stroke length 100 %
• three-phase 400 V motor.
Pump type
DMX 4-10
DMX 7-10
DMX 9-10
DMX 12-10
DMX 17-4
DMX 25-3
DMX 7.2-16
DMX 8-10
DMX 14-10
DMX 18-10
DMX 26-10
DMX 39-4
DMX 60-3
DMX 13.7-16
DMX 16-10
DMX 16-12
DMX 27-10
DMX 27-12
DMX 35-10
DMX 50-10
DMX 75-4
DMX 115-3
Outlet pressure
Parameter
Minimum counterpressure
Accuracy
The values in the table below apply to the following conditions:
• dosing medium with viscosity and density similar to those of water
• fully deaerated dosing head
• standard pump version.
Parameter
Dosing flow fluctuation ± 1.5 % within the control range 1:10
Stroke volume
3
[cm ]
2.2
3.8
4.9
6.9
10.4
16
1.9
2.2
3.8
4.9
6.9
10.4
16
1.9
2.2
2.2
3.8
3.8
4.9
6.9
10.4
16
Value
1 bar at the pump outlet valve
Value
Maximum stroke rate
50 Hz 60 Hz
[n/min] [n/min]
29 35
29 35
29 35
29 35
29 35
29 35
63 75
63 75
63 75
63 75
63 75
63 75
63 75
120 144
120 144
120 144
120 144
120 144
120 144
120 144
120 144
120 144
DMX 221 | | 41