9.3.3 Pump performance
Dosing flow and maximum counterpressure
The values in the table below apply to the following conditions:
•
maximum counterpressure at the outlet valve. Take the pressure losses along the outlet line
to the injection point into account.
•
dosing medium with viscosity and density similar to those of water
•
flooded suction 0.5 m
•
fully deaerated dosing head
•
stroke length 100 %
•
three-phase 400 V motor.
Pump type
Maximum dosing flow
Maximum counterpressure
50 Hz
60 Hz
[bar]
[psi]
[l/h]
[l/h]
[US gph]
DMX 4-10
4
5
1.3
10
145
DMX 7-10
7
8
2.1
10
145
DMX 9-10
9
11
2.9
10
145
DMX 12-10
12
14
3.7
10
145
DMX 17-4
17
20
5.3
4
58
DMX 25-3
27
32
8.5
3
43
7.2
9
2.3
16
232
DMX 8-10
8
10
2.6
10
145
DMX 14-10
14
17
4.5
10
145
DMX 18-10
18
22
5.8
10
145
DMX 26-10
26
31
8.2
10
145
DMX 39-4
39
47
12.4
4
58
DMX 60-3
60
72
19.0
3
43
DMX 13.7-16
*1
13.7
16
4.3
16
232
DMX 16-10
16
19
5.0
10
145
DMX 16-12
15.7
19
5.0
12
174
DMX 27-10
27
32
8.5
10
145
DMX 27-12
26.8
32
8.5
12
174
DMX 35-10
35
42
11.1
10
145
DMX 50-10
50
60
15.8
10
145
DMX 75-4
75
90
23.8
4
58
DMX 115-3
115
138
36.5
3
43
*1
Operating the pump at a counterpressure of 16 bar will reduce the life of the dosing dia-
phragm.
Stroke volume and stroke rate
The values in the table below apply to the following conditions:
DMX 221 | |
44
