Pump Types; Pump Performance - Grundfos DMH 28X Manual Del Usuario

3.3 Pump types

The DMH 28X dosing pump is available for a variety of
performance ranges in various sizes. Pump type and designation,
see pump nameplate.
The following is indicated on the pump nameplate (see section
3.1 Identification):
• The pump type which specifies the stroke volume, connection
size and performance data (see below).
• The pump serial number which is used to identify the pump.
• The most important characteristics of the pump configuration
e.g. for dosing head and valve materials. They are described
in section 3.2 Type key.
• Maximum flow rate and maximum counter-pressure.
• Mains frequency.
The following is indicated on the motor nameplate:
• required energy
• mains frequency
• power consumption
• enclosure class.

3.4 Pump performance

Performance data at maximum pump counter-pressure
Pump type
Single pump Double pump
DMH 280
DMH 0.6-200 DMH 0.6-200/0.6-200
DMH 1.3-200 DMH 1.3-200/1.3-200
DMH 2.2-200 DMH 2.2-200/2.2-200
DMH 2.5-200 DMH 2.5-200/2.5-200
DMH 3.3-200 DMH 3.3-200/3.3-200
DMH 281
DMH 2-100 DMH 2-100/2-100
DMH 4.2-100 DMH 4.2-100/4.2-100
DMH 6.4-100 DMH 6.4-100/6.4-100
DMH 8-100 DMH 8-100/8-100
DMH 9.6-100 DMH 9.6-100/9.6-100
DMH 283
DMH 10-100 DMH 10-100/10-100
DMH 19-100 DMH 19-100/19-100
DMH 27-100 DMH 27-100/27-100
DMH 33-100 DMH 33-100/33-100
DMH 40-100 DMH 40-100/40-100
DMH 55-100 DMH 55-100/55-100
DMH 285
DMH 20-100 DMH 20-100/40-100
DMH 40-100 DMH 40-100/40-100
DMH 52-100 DMH 52-100/52-100
DMH 70-100 DMH 70-100/70-100
DMH 80-100 DMH 80-100/80-100
DMH 105-100 DMH 105-100/105-100
DMH 286
DMH 170-50 DMH 170-50/170-50
DMH 222-50 DMH 222-50/222-50
DMH 85-50 DMH 85-50/85-50
DMH 111-50 DMH 111-50/111-50
50 Hz
Max. stroke
Q* p max.
rate
[l/h] [bar] [n/min]
0.63 200 29
1.45 200 63
2.22 200 96
2.81 200 120
3.42 200 144
2 100 29
4.2 100 63
6.4 100 96
8 100 120
9.6 100 144
10 100 26
19 100 54
27 100 75
33 100 92
40 100 112
55 100 153
20 100 28
40 100 56
52 100 73
70 100 98
80 100 112
105 100 146
170 50 112
222 50 146
85 50 56
111 50 73
60 Hz
Max. stroke
Q* p max.
rate
[l/h] [bar] [n/min]
0.76 200 35
1.74 200 76
2.66 200 115
3.37 200 144
- - -
2.4 100 35
5 100 75
7.7 100 115
9.6 100 144
- - -
12 100 31.2
23 100 65
32 100 90
40 100 110
48 100 134
- - -
24 100 34
48 100 67
63 100 88
84 100 118
96 100 134
- - -
204 50 134
- - -
102 50 67.2
133 50 87.6
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