Maximum Permissible Viscosity; Pump Performance; Accuracy; Performance - Grundfos DMX Series Installation And Operating Instructions Manual

3.3.2 Maximum permissible viscosity

3.4 Pump Performance

3.4.1 Accuracy

Dosing flow fluctuation

3.4.2 Performance

Simple pump
DMX 430-5
DMX 860-5
DMX 1120-5
DMX 770-3
DMX 1520-3
DMX 2000-3
Double pump
DMX 430-5/430-5
DMX 860-5/860-5
DMX 1120-5/1120-5
DMX 770-3/770-3
DMX 1520-3/1520-3
DMX 2000-3/2000-3
*) maximum counterpressure 1) Operation with frequency converter
14
Simple
pump
DMX 430-5
DMX 860-5
DMX 1120-5 DMX 1120-5/1120-5
DMX 770-3
DMX 1520-3 DMX 1520-3/1520-3
DMX 2000-3 DMX 2000-3/2000-3
< ± 2 % within the control range 1:10
These data refer to:
- dosing medium water
- fully deaerated dosing head
- standard version of pump
The data in the following table refer to:
- maximum counterpressure
- dosing medium water
- flooded suction 0.5 m w. c.
- fully deaerated dosing head
- three-phase 400 V motor
Dosing
p max *
head size
[bar] [psi]
1 5 73
2 3 44
Dosing
p max *
head size
[bar] [psi]
1 5 73
2 3 44
Double
pump
DMX 430-5/430-5
DMX 860-5/860-5
DMX 770-3/770-3
50 Hz
Q Strokes Q
[l/h] [H/min] [l/h] [gal/h]
430 28 516
860 56 1032 273
1120 73 1344 355
770 28 924
1520 56 1824 482
2000 73 2400 634
50 Hz
Q Strokes Q
[l/h] [H/min] [l/h] [gal/h]
860 63 1032 273
1720 120 2064 545
2240 168 2688 710
1540 63 1848 488
3040 120 3648 964
4000 168 4800 1268
Dosing
head
size
50 Hz
1000
1
800
400
800
2
400
200
60 Hz
100 Hz
Strokes Q
[H/min] [l/h] [gal/h]
136 34 860
67 1720 454
88 2240 592
244 34 1540 407
67 3040 803
88 4000 1057
60 Hz
100 Hz
Strokes Q
[H/min] [l/h] [gal/h]
76 1720 454
144 3440 909
202 4480 1184
76 3080 814
144 6080 1606
202 8000 2114
15.720023-V3.0
DMX model 227
Viscosity
[mPas]
60 Hz
800
400
200
400
200
100
1)
Strokes
[H/min]
227 56
112
146
56
112
146
1)
Strokes
[H/min]
126
240
336
126
240
336