Pump Types; Pump Performance - Grundfos DMX 227 Montage- Und Betriebsanleitung

3.3 Pump types

Pump type
Single pump Double pump
DMX 430-5 DMX 430-5/430-5
DMX 860-5 DMX 860-5/860-5
DMX 1120-5 DMX 1120-5/1120-5
DMX 770-3 DMX 770-3/770-3
DMX 1520-3 DMX 1520-3/1520-3
DMX 2000-3 DMX 2000-3/2000-3

3.4 Pump performance

3.4.1 Accuracy
• Dosing flow fluctuation: less than ± 2 % within the control
range 1:10.
Applies to:
• water as dosing medium
• fully deaerated dosing head
• standard pump version.
3.4.2 Performance
Applies to:
• maximum counterpressure
• water as dosing medium
• flooded suction 0.5 mWC
• fully deaerated dosing head
• three-phase 400 V motor.
Pump type p max.*
Single pump [bar]
DMX 430-5 5
DMX 860-5
DMX 1120-5
DMX 770-3 3
DMX 1520-3
DMX 2000-3
Pump type p max.*
Double pump [bar]
DMX 430-5/430-5 5
DMX 860-5/860-5
DMX 1120-5/1120-5
DMX 770-3/770-3 3
DMX 1520-3/1520-3
DMX 2000-3/2000-3
* Maximum counterpressure
** Operation with frequency converter
Dosing head size
50 Hz
Max. stroke
Q
rate
[psi] [l/h] [n/min]
73 430 28
860 56
1120 73
44 770 28
1520 56
2000 73
50 Hz
Max. stroke
Q
rate
[psi] [l/h] [n/min]
73 860 63
1720 120
2240 168
44 1540 63
3040 120
4000 168
Motor
Single pump
[kW]
1 1.5
1 1.5
1 1.5
2 1.5
2 1.5
2 1.5
60 Hz
Max. stroke
Q
rate
[l/h] [gal/h] [n/min]
516 136 34
1032 273 67
1344 355 88
924 244 34
1824 482 67
2400 634 88
60 Hz
Max. stroke
Q
rate
[l/h] [gal/h] [n/min]
1032 273 76
2064 545 144
2688 710 202
1848 488 76
3648 964 144
4800 1268 202
Stroke volume
Double pump
[ml]
[kW]
2.2 256
2.2 256
2.2 256
2.2 457
2.2 457
2.2 457
100 Hz**
Max. stroke
Q
rate
[l/h] [gal/h] [n/min]
860 227 56
1720 454 112
2240 592 146
1540 407 56
3040 803 112
4000 1057 146
100 Hz**
Max. stroke
Q
rate
[l/h] [gal/h] [n/min]
1720 454 126
3440 909 240
4480 1184 336
3080 814 126
6080 1606 240
8000 2114 336
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