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FIXED DISPLACEMENT HYDRAULIC VANE PUMPS “HQ” SERIES
The design of the HQ series vane pumps makes them particularly suitable for application on trucks,
especially garbage compactors.
All the components subject to wear are contained in a cartridge unit that can be easily removed for
inspection and/or replacement without disconnecting the pump from the circuit, drastically reducing
expensive machine downtime.
The special design of the inner flexible plates of the cartridge enables any thermal expansion in the
rotor to be compensated for and to adequately cope with any sudden change in pressure.
Furthermore, the two opposed pumping
chambers formed by the elliptical profile of the
cam cancel out radial loads, dramatically
reducing vibrations and considerably increasing
the pump lifetime.
In addition to reliability, HQ pump guarantees
continuous high volumetric efficiency during
its whole servicetime. That avoids having to
compensate the typical efficiency loss of other
kinds of pump, increasing the truck engine
RPM, which causes higher fuel consumption and therefore air pollution.
Such characteristics, along with an extremely low noise-level, make the HQ pump environmentally
friendly, in line with the latest ecological trend.
The HQ series is available in 2 versions of single pump (from 39 to 88 l/min at 1000 rpm) and two
versions of double pump (from 46 to 134 l/min at 1000 rpm) with maximum powers of over 103 kW.
The pumps are extremely compact and are supplied with different types of either ISO or UNI norm
mounting for the direct coupling with PTO and SAE norm hydraulic fittings. That, together with the
possibility to orientate the inlet and outlet ports, makes the HQ pumps very easy to install and
guarantees their interchangeability with other types of pumps.
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66
64
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60
sound level at 140 bar
(HQ02 pump)
dB(A)
1000 rpm
1500 rpm
2000 rpm
HQ