Abstract: The disclosure relates to a pressure independent controlled valve having an axis intersecting a flow path of a pipe system and having a valve housing having a top end and a bottom end, the valve having an valve stem positioned along the axis, wherein the valve stem traverses through the housing; a fixed outer ring within the housing and surrounding the valve stem; a first inner ring within the fixed outer ring, wherein the first inner ring defines a first opening; a second inner ring within the first inner ring, wherein the second inner ring defines a second opening; a key configured to maneuver the first inner ring; and an actuator configured to maneuver the second inner ring.

Abstract: A pressure independent control valve system including a pipe system defining a flow path for a volume of fluid to regulate flow downstream of the pressure independent control valve system, wherein the pipe system has a butterfly valve configured to control a flow rate of the volume of fluid; an ultrasonic sensor configured to transmit and receive a signal across the flow path; and an electronic transducer processor in data communication with the ultrasonic sensor and the butterfly valve.