English (GB)
7
3.3 Pump performance
3.3.1 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 Water Treatment factory
standard no. 0010/0011
• standard pump version.
3.3.2 Performance
Applies to:
• maximum counterpressure
• water as dosing medium
• flooded suction 0.5 mWC
• fully deaerated dosing head
• three-phase 400 V motor.
* Maximum counterpressure
** When operating with a counterpressure of 16 bar, the life of the dosing diaphragm will be reduced.
Pump type
Stroke
volume
V
50 Hz
60 Hz
Q**
p max.*
Max. stroke rate
Q**
p max.**
Max. stroke rate
[cm
3
]
[l/h]
[bar]*
[n/min]
[l/h]
[US gph]
[bar]*
[psi]*
[n/min]
DMX 4-10
2.2
4
10
29
5
1.3
10
145
35
DMX 7-10
3.8
7
10
29
8
2.1
10
145
35
DMX 9-10
4.9
9
10
29
11
2.9
10
145
35
DMX 12-10
6.9
12
10
29
14
3.7
10
145
35
DMX 17-4
10.4
17
4
29
20
5.3
4
58
35
DMX 25-3
16
27
3
29
32
8.5
3
43
35
DMX 7.2-16**
1.9
7.2
16
63
10
2.6
16
232
75
DMX 8-10
2.2
8
10
63
10
2.6
10
145
75
DMX 14-10
3.8
14
10
63
17
4.5
10
145
75
DMX 18-10
4.9
18
10
63
22
5.8
10
145
75
DMX 26-10
6.9
26
10
63
31
8.2
10
145
75
DMX 39-4
10.4
39
4
63
47
12.4
4
58
75
DMX 60-3
16
60
3
63
72
19.0
3
43
75
DMX 13.7-16**
1.9
13.7
16
120
19
5.0
16
232
144
DMX 16-10
2.2
16
10
120
19
5.0
10
145
144
DMX 27-10
3.8
27
10
120
32
8.5
10
145
144
DMX 35-10
4.9
35
10
120
42
11.1
10
145
144
DMX 50-10
6.9
50
10
120
60
15.8
8
116
144
DMX 75-4
10.4
75
4
120
90
23.8
3.5
50
144
DMX 115-3
16
115
3
120
138
36.5
2.5
36
144
Содержание DMX 221 Series
Страница 1: ...DMX 221 Dosing pump Installation and operating instructions GRUNDFOS INSTRUCTIONS ...
Страница 30: ...30 ...
