Dosing Curves - Grundfos DMH 28X Manual Del Usuario

12. Dosing curves

The dosing curves on the following pages are trend curves.
They apply to:
• performance of single pump (the flow rate is doubled for the
double pump)
• water as dosing medium
• zero point of pump Q for specified pressure, see table below
0
• standard pump version.
Abbreviation Description
Q Dosing flow
Q Zero point of the pump
0
h Stroke length
DMH 280
1,6
Q [l/h]
100 bar
1,4
10bar
1,2
200 bar
100bar
1,0 200bar
10 bar
0,8
0,6
0,4
0,2
0,0
0 10 20 30 40
Fig. 47 DMH 0.6-200 (50 Hz), Q
1,8
Q [l/h]
100 bar
1,6
100bar
1,4
10bar 200 bar
200bar
1,2
10 bar
1,0
0,8
0,6
0,4
0,2
0,0
0 10 20 30 40
Fig. 48 DMH 0.6-200 (60 Hz), Q
3,5
Q [l/h]
3,0
100 bar
10bar
2,5 100bar
200 bar
200bar
10 bar
2,0
1,5
1,0
0,5
0,0
0 10 20 30 40 50 60 70 80 90 100
Fig. 49 DMH 1.3-200 (50 Hz), Q
50 60 70 80 90 100
h [%]
= 75 bar
0
50 60 70 80 90 100
h [%]
= 75 bar
0
h [%]
= 75 bar
0
3,5
Q [l/h]
100 bar
3,0
100bar
200 bar
10bar
2,5
200bar
10 bar
2,0
1,5
1,0
0,5
0,0
0 10 20 30 40 50 60 70 80 90 100
Fig. 50 DMH 1.3-200 (60 Hz), Q
5
Q [l/h]
100 bar
10bar
4
200 bar
100bar
200bar
10 bar
3
2
1
0
0 10 20 30 40 50 60 70 80 90 100
Fig. 51 DMH 2.2-200 (50 Hz), Q
5
Q [l/h]
100 bar
4
100bar
200 bar
10bar
3 200bar
10 bar
2
1
0
0 10 20 30 40 50 60 70 80 90 100
Fig. 52 DMH 2.2-200 (60 Hz), Q
8
Q [l/h]
100 bar
7
10bar
200 bar
100bar
6
200bar
10 bar
5
4
3
2
1
0
0 10 20 30 40 50 60 70 80 90 100
Fig. 53 DMH 2.5-200 (50 Hz), Q
h [%]
= 75 bar
0
h [%]
= 75 bar
0
h [%]
= 75 bar
0
h [%]
= 75 bar
0
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