Dynamic pressure registration device for internally registered actuators and overpressure protection devices

A fluid regulating device, comprising:

• a regulator valve having a valve body defining an inlet and an outlet, the regulator valve further including a valve port disposed between the inlet and the outlet;
• an actuator coupled to the regulator valve and comprising a valve disc, the valve disc disposed within the regulator valve and adapted for displacement between a closed position sealingly engaging the valve port and an open position disposed away from the valve port, wherein the valve disc is coupled to a diaphragm, and wherein pressure within a control cavity acts on the diaphragm to displace the valve disc between the closed position and the open position, wherein in the open position, fluid flowing from the inlet to the outlet flows through the outlet along a flow axis;
• wherein the actuator includes a sensing tube, the sensing tube having a first end in fluid communication with the control cavity and a second end in fluid communication with the outlet of the of the regulator valve such that the control cavity is in fluid communication with the outlet of the regulator valve,
• wherein a first portion of the sensing tube extends along a tube axis that is parallel to the flow axis and wherein the first portion extends from a first point disposed between the first end and the second end and a second point disposed at the second end, and wherein one or more apertures are disposed in the sensing tube adjacent to the second end, each of the one or more apertures having a centerline that is normal to the tube axis,
• wherein each of the one or more apertures extends from an outer surface of the first portion to an inner surface of the first portion,
• wherein an outer diameter of the first end extends a first distance, and
• wherein at least three and at most four apertures are disposed in the sensing tube, and each of the apertures has a centerline, and each centerline of each of the apertures is disposed in a single reference plane that is normal to the tube axis and that is disposed a second distance along the tube axis from the first end of the sensing tube, wherein the second distance is less than twice the first distance.