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Search results with tag "Direct drive servo valves d633 and d634"
Direct Drive Servo Valves D633 and D634 Series - …
www.moog.com2 MOOG • D633/D634 Series GENERAL D633-D634 D633 AND D634 SERIES SERVO CONTROL VALVES The D633 and D634 Series are Direct Drive Valves (DDV) with electric closed loop spool position control.