ELIKA® Helical Gear Pumps
the new low
noise, low pulsation gear pump reduces
noise level by an average of 15 dBA
group 2, 3 and multiple
new hydraulic gear pump is a perfect fit for all applications
that require low noise levels.
The use of the new ELIKA® gear pump eliminates adverse noise
effects on hearing and on the surrounding environment.
The ELIKA® gear pump reduces the noise level by an average of 15 dBA compared with a conventional
external gear pump.
Marzocchi GHP2 to ELIKA ELI 2, same displacement 17.8 cm3/rev.
is a patented product.
II ELI2 is the first in the series of ELIKA range and includes hydraulic
gear pumps with displacement from 7 to 35 cm3/rev; perfectly
interchangeable with the standard gear pumps ALP2
and GHP2 series.
The maximum operating pressures are similar to those of GHP2
series and extend up to 300 bar. The helical gear ensures the
continuity of the motion despite the low number of teeth.
The low number of teeth
reduces the fundamental frequencies of the pump noise, producing
The helical profile of the gears reduces pressure oscillations
and vibrations produced by the pump and transmitted to the other
components, reducing the noise of the hydraulic system. Axial
forces induced by the helical teeth are optimally balanced in
all operating conditions by the axial compensation system integrated
in the pump cover.
Specific compensation areas into flange and cover, insulated
by special gaskets reinforced with anti-extrusion, allow for
fully free axial and radial movement of the bushings, which is
proportional to pump operating pressure. In this way, internal
leakage is dramatically reduced, ensuring very good volumetric
and mechanical pump performances, as well as proper lubrication
of pumps moving parts.
ELIKA® pumps are available in both uni-directional clockwise
or counter clockwise rotation.
the group III range in the ELIKA® series and includes pumps with displacement
from 20.4 to 87.1 cm3/ rev; perfectly interchangeable with the
standard gear pumps ALP3 and GHP3 series.
The maximum operating pressures are similar to those of GHP3
series and extend up to 300 bar.
|The particular shape
of the Elika® profile patented by Marzocchi Pompe, eliminates
the phenomenon of encapsulation typical of normal gear pumps,
deleting the source of the main cause of noise and vibrations.
The structure of the pump minimizes the internal leakage, maximizing
the volumetric efficiency under all conditions.
This feature makes the Elika® hydraulic gear pump suitable
for work operations with low speed and high pressure. The internal
leakage, virtually eliminated in the Elika® pumps, laminating
to outlet from the inlet, overheat the pump components.
Comparing the characteristics of the pumps Elika® with other
kinds of volumetric pumps, it can be seen that they have a very
high field of use like: the rotation speed, work pressure and
Techniques Limited technical office
telephone: 01737 767493
mechanical & fluid power