Differential configuration of remote hydraulic valve flow...
Differential hydraulic jack with damping system for the control
Differential pressure detecting system
Differential pressure limiting valve
Differential pressure operated servo boosters
Differential pressure sensing valve
Digital fluid stepping motor
Digital motor feedback for a position actuator
Digital pneumatic modulator
Digital positioner for remote actuation of a control valve
Digital proportional spool position control of compensated valve
Digital servo valve system
Digital servovalve and method of operation
Digital variable actuation system
Digitally compatible servomotor
Digitally controlled air-over-hydraulic actuator and method
Direct drive rotary servo valve
Direct drive variable displacement hydraulic apparatus
Direction control valve fitted with a flow control mechanism
Directional control valve and regeneration valve