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Parker Hannifin Corporation
Open-Center Directional Control Valve
VO40
Catalog HY17-8505/UK
Breadth of Line
Parker Hannifin is a Fortune 500
company with sales of $9 billion
and over 400,000 customers in 43
countries. Parker is the world’s
leading supplier of motion control
components and system solutions
serving the mobile, industrial
and aerospace markets.
Parker is your single source
for any hydraulic valve require-
ment. We provide a wide selection
of open-center and load-sense
directional control valves for any
construction, off-highway, or on-
highway application. Many of our
open-center valves can be adapted
and used as closed-center, constant-
pressure, and constant-pressure
unloaded valves. Each of these
technologies offers unique features
for improved machine performance
over traditional, open-center control
valves.
When remote control is required,
Parker provides a broad line of
pilot controllers that are compact
and pressure-matched with our
control valves to provide consistent
and optimized machine control.
There are a variety of electric-
switch handle options available
for additional function control by
the operator.
Parker’s premier IQAN electron-
ics packages range from simple
stand-alone controllers to large,
multiple CAN bus systems with
color displays. For example, IQAN
interfaces with new electronic
diesel engines over the SAE J1939
CAN bus.
Package components are
designed and tested for
mobile applications to
help increase machine
Total Machine
Motion Control
You can turn to us for all your
mobile motion control solutions.
We offer stand-alone valves, as well
as custom-designed manifolds with
integrated directional control valves.
No matter what type of system you
choose, Parker solutions provide
top-notch performance and reli-
ability. Our systems are optimized
to reduce complexity, size, cost, and
fluid leakage. Therefore, working
with Parker can significantly cut
your machine-build time.
uptime. The IQAN valve drivers
offer superior control of propor-
tional hydraulic functions resulting
in increased machine productivity.
Non-programmers find IQAN’s
programming interface easy to use,
reducing development time. Fur-
thermore, excellent diagnostic tools
and remote modem connection help
cut field service time.
Introduction