Page 16
EN
Assembly instructions
The gear pump units are manufactured in
3 assemblies:
Series 1 is approved for very high viscosities
up to 1.000 mm
2
/s. They are characterized by
their simple and small design, and are accord-
ingly inexpensive. They are particularly suited
for small hydraulic and lubrication systems that
require volumetric flows between
0.06 l/min and 3 l/min for operating pressures
between 25 bar and 60 bar.
Series 2 and series 3 meet high requirements
in terms of volumetric flow, operating pressure
and efficiency. While series 2 has been de-
signed for volumetric flows of between 1 l/min
and 10.8 l/min, series 3 covers the range be-
tween 3.8 l/min and 36 l/min. Within the series,
the permissible operating pressure is greater
the smaller the nominal volumetric flow.
4.2.4 Use
Due to the overlapping volumetric flow ranges,
it is possible, for instance, to convey 9 l/min
using a series 2 pump in the low-pressure
range, whereas a corresponding series 3
Series 1-3 (not to scale) Fig. 1
4
0,010,020,050,030,1
2
1
3
0,2
0,4
0,30,512
5
10
30
20
40
50
100
200
300
43510302040 50
p [bar]
Series 1
Series 2 Series 3
pump can achieve this volumetric flow in the
high-pressure range for the same efficiency.
The respective ranges of the series are shown
in a simple form in
Fig. 1.
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