PROPORTIONAL MOTION CONTROL VALVE

摘要

A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage and to a hydraulic closing force by fluid that is present in the internal cavity. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.