Pump Performance - Grundfos DMX 4-10 Installation And Operating Instructions Manual

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6.3 Pump performance

6.3.1 Accuracy
Dosing flow fluctuation: ± 1.5 % within the control range 1:10
Linearity deviation: ± 4 % of the full-scale value.
Adjustment from max. to min. stroke length, within the control
range 1:5.
Applies to:
water as dosing medium
fully deaerated dosing head
measurement according to Grundfos Alldos factory standard
no. 0010/0011
standard pump version.
6.3.2 Performance
Applies to:
maximum counter-pressure
water as dosing medium
flooded suction 0.5 mWC
fully deaerated dosing head
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 27-10
DMX 35-10
DMX 50-10
DMX 75-4
DMX 115-3
* Maximum counter-pressure.
** When operating with a counter-pressure of 16 bar, the life of the dosing diaphragm will be reduced.
8
50 Hz
Stroke
volume
Q**
p max.*
V
3
[cm
]
[l/h]
[bar]*
2.2
4
10
3.8
7
10
4.9
9
10
6.9
12
10
10.4
17
4
16
27
3
1.9
7.2
16
2.2
8
10
3.8
14
10
4.9
18
10
6.9
26
10
10.4
39
4
16
60
3
1.9
13.7
16
2.2
16
10
3.8
27
10
4.9
35
10
6.9
50
10
10.4
75
4
16
115
3
Max.
stroke
Q**
rate
[n/min]
[l/h]
[US gph]
29
5
1.3
29
8
2.1
29
11
2.9
29
14
3.7
29
20
5.3
29
32
8.5
63
10
2.6
63
10
2.6
63
17
4.5
63
22
5.8
63
31
8.2
63
47
12.4
63
72
19.0
120
19
5.0
120
19
5.0
120
32
8.5
120
42
11.1
120
60
15.8
120
90
23.8
120
138
36.5
60 Hz
Max.
p max.**
stroke
rate
[bar]*
[psi]*
[n/min]
10
145
35
10
145
35
10
145
35
10
145
35
4
58
35
3
43
35
16
232
75
10
145
75
10
145
75
10
145
75
10
145
75
4
58
75
3
43
75
16
232
144
10
145
144
10
145
144
10
145
144
8
116
144
3.5
50
144
2.5
36
144

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