1. A computer program product for regulating flow through a flow control device based on measurements from a single pressure sensor in a housing of the flow control device, the computer program product comprising a set of computer instructions stored on at least one computer readable medium executable by at least one processor to: receive a pressure measurement, wherein the pressure is measured at the single pressure sensor in the housing and the single pressure sensor is the only sensor in the flow control device, wherein the flow control device further comprises a single flow path including: an inlet for receiving a flow into the flow control device; an outlet in fluid communication with the inlet for directing the flow out of the flow control device to components of a flow system; and a valve located in the housing and between the inlet and the outlet and responsive to valve control signals for regulating the flow through the flow control device; calculate a flow rate based on a flow rate corresponding only to the pressure measurement from the single pressure sensor in the housing; compare the flow rate to a set point; and generate a valve control signal based on the difference between the calculated flow rate and set point.