Fluid actuated valve with hall position sensor

A valve assembly, comprising:

• a flow body having a flow passage extending therethrough;
• a valve element disposed within the flow passage and rotatable between closed position and an open position;
• and
• a valve actuator coupled to the flow body, the valve actuator comprising:
• an actuator housing coupled to the flow body and having an actuator housing inner surface and an actuator housing outer surface, the actuator housing inner surface defining an actuator housing inner volume that is adapted to receive pressurized fluid;
• a piston movably mounted within the actuator housing inner volume, the piston configured to translate in a first direction and a second direction;
• a linkage assembly coupled to the valve element and rotationally coupled to the piston, the linkage assembly configured to rotate the valve element between the closed and the open position in response to piston movement in the first direction and the second direction, respectively;
• a magnet mounted on the piston and movable therewith;
• and
• a Hall sensor mounted on the actuator housing outer surface and responsive to movement of the magnet to supply a position signal.

A valve actuator, comprising:

• an actuator housing having an actuator housing inner surface and an actuator housing outer surface, the actuator housing inner surface defining an actuator housing inner volume that is adapted to receive pressurized fluid;
• a piston movably mounted within the actuator housing inner volume and configured to translate in a first direction and a second direction, the piston including a piston outer surface and a piston inner surface, the piston outer surface having a magnet recess formed thereon, the piston inner surface defining a piston inner volume;
• a linkage assembly disposed within the piston inner volume and rotationally coupled to the piston, the linkage assembly adapted to couple to a valve element and configured to rotate the valve element in a first rotational direction and a second rotational direction in response to piston movement in the first direction and the second direction, respectively;
• a magnet disposed within the piston recess and movable with the piston;
• a sensor housing adjustably mounted on the actuator housing outer surface;
• a Hall sensor disposed within the sensor housing and responsive to movement of the magnet to supply a position signal.