4 Operating Instructions D661K, D662K, D663K and D664K (CA49305-001; Version 3.0, 10/07) © 2007 Moog GmbH
D661K, D662K, D663K and D664K Series
2 Description
Valves of the D66XK Series are servo and proportional valves
with a Jetpipe pilot valve insensitive to dirt and electrical
return of the spool position.
In servo valves, the control spool runs in a bushing, which
is fitted into the body of the valve.
In proportional valves, the control spool runs directly in the
valve body.
Proportional valve D661K Series
2.1 Design and funktion
2.1.1 Servo and proportional valves
The D66XK Series valves are throttle valves for 2-, 3- and
4-way applications. 5-way applications are also possible
with the D661K proportional valve.
These valves are suitable for electrohydraulic position,
velocity, pressure or force control systems with high dynamic
response requirements.
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