Downstream flow sensing probe

An apparatus is provided for a regulator valve (10) comprising a duct (12), a valve element (14), a regulator unit (16), and a fluid pressure sensor (18). The duct (12) has an inner surface (24) that defines a flow passage (26). The valve element (14) is movably disposed within the flow passage (26). The regulator unit (16) is coupled to the valve element (14), and is further coupled to receive fluid at a feedback pressure magnitude. The regulator unit (16) is configured to controllably position the valve element (14) based at least in part on the feedback pressure magnitude, to thereby regulate fluid pressure downstream of the valve element (14) to a regulated pressure magnitude that results in a static pressure magnitude at least proximate the duct inner surface (24). The fluid pressure sensor (18) is disposed downstream of the valve element (14), and is configured to supply the fluid at the feedback pressure magnitude, with the feedback pressure magnitude being less than the static pressure magnitude.