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Vickers – HQ Hydraulic vane pump

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.