The D691 servo-proportional
control PQ-Valves are dual
function valves for 2x2-, 3-, 4-
and 5-way applications.
The PQ-Valves modulate a
fluid flow and control closed
loop pressure (upper or lower
pressure limit) control.
The
valves are suitable for pressure
control and pressure limiting
applications.
The control electronics for
the spool position transducer,
pressure loops and pressure
transducer are integrated in
the valve.
Moog created the first closed
loop PQ valve nearly 15 years
ago. Since then, Moog has
produced more than 30,000
PQ-Valves.Applications include
injection molding, heavy
industry, presses and paper
processing.
The valves have
proved to be extremely
reliable, especially when
high dynamic performance
is required.
Over the years, Moog has
made steady improvements to
its basic PQ design. Our new
ServoJet® pilot is a new innovation
that results in increased
energy savings and robustness.
The pilot stage uses the jet
pipe principle which for over 8
years has been operating reliably
in different Moog valves.
The integrated valve electronics
require either a 24 Volt DC
or a ±15 Volt DC power
supply.
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