Fixed Displacement HV2010 and HV2020 (Double Pump)0 pages

Fixed Displacement Vane Pump
HV and HVQ Series
Features
• HV / HVQ Series are fixed displacement and balanced
type vane pumps. Available in both 12 vanes design for
industrial application with quiet operating and 10 vanes
design for mobile application with higher pressure and
wider range of speed.
• The vane design with self compensation for wear and
clearances makes volumetric efficiency of pump nearly
constant over the service life. (the vane always adjust its
orbit to contact with the cam ring, even though wear occurs
between the cam ring and vane tip)
• With a balanced intra-vane design, outlet pressure is
continuously applied only to the area between the vane
of 90o in relation to each other, providing application
and insert. This area is small and thrust is correspondingly
flexibility and easy installation.
light. Top and bottom areas of the vane are subject to either
inlet or outlet pressure, depending on the vane's location • With the cartridge independent of the shaft, allowing for
during rotor rotation. The valving of pressure to and from
easy change of flow capacity and field servicing without
the bottom area of the vane is through holes drilled in the
removing the pump from its mounting.
rotor. This varying pressure under the vane reduces wear
and increases pump efficiency.
• For the cartridge kit of H VQ Series, the flexible plates are
inserted between the support plates and the rotor. The
• The vane pump is not damaged at low speed and high
flexible plates are assembled with the bronze facing
pressure operation because pumping action does not start
towards the rotor to improve cold start capability and
until the speed is high enough for the vane to throw out.
compensate thermal expansion in the rotor. This makes
HVQ Series particularly suited for mobile application.
• The inlet or outlet ports can be rotated through increments

Handling
• For maximum service life, the pump should be protected
from contamination. Filtering fluid before filling and during
operation to maintain or exceed ISO cleanliness code 16/
13. Appropriately size suction filter, with cold start bypass,
of 149 micron absolute (100 mesh) and 10 micron absolute
return line filter is recommended. Replaceable elements
should be changed as filter supplier instructions
• The drive shaft must align with the power source shaft.
Avoiding shaft end thrust and applications that impose
radial loading.
• The start-up procedures should be as follows:
- Check the rotation of power source to match with rotation

of pump.
- Check inlet and outlet ports to assure all connections are
properly installed and check all mounting bolts and flanges
to assure all are tight and properly aligned.
- Fill pump with fluid through the outlet port if the pump is
mounted above the fluid level. The spline shaft models
also need to be lubricate with an anti-fretting grease or
similar lubricant.
- Place all controls in the neutral position so the pump is
unloaded during initial start-up.
- Prime the pump within a few second when the pump is
started.
- Bleed off entrapped air from outlet circuit until a steady
output flow is observed.

The products described herein, including without limitation, product features, specifications, designs, availability and pricing,
are subject to change at any time without notice.

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