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Digital servoproportionals are performing
close to good servovalves with excellent
reliability...at the top of proportional
applications.
Spool-sleeve precise overlapping,
closed-loop feedback, fail-safe, high
response, digital electronics factory preset,
flow/pressure/position digital control,
software setting of functional parameters,
rugged option versus vibrations & shocks,
ex-proof & stainless steel executionse
Basic principle of operation
Proportional valves modulate hydraulic
or motion parameters according to
electronic reference signals.
Basic principle of a proportional valve:
the force of solenoid is related to the
reference signal, thus properly moving
the spool against a return spring to
modulate hydraulic parameters
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