Magnetically actuated rising stem valve with physical position indication

A magnetically actuated rising stem valve, comprising:

• a stem;
• a magnetic clutch, wherein the magnetic clutch includes an inner magnetic array attached to the stem and an outer magnetic array, wherein the inner magnetic array includes a plurality of constituent magnets or a plurality of distinct magnetic domains, wherein the outer magnetic array includes a second plurality of constituent magnets or a second plurality of distinct magnetic domains;
• a valve housing, including a pressure vessel encapsulating the stem, wherein the outer magnetic array surrounds a section of the valve housing;
• a threaded nut fixed relative to the valve housing, wherein the stem is threadedly engaged with the threaded nut such that rotation of the stem and the inner magnetic array causes axial translation of the stem and the inner magnetic array;
• wherein the axial translation of the stem and the inner magnetic array causes the magnetically actuated rising stem valve to open or close;
• wherein actuation of the outer magnetic array applies torque to the inner magnetic array, thereby causing the rotation of the stem and the inner magnetic array;
• and
• wherein the outer magnetic array is configured to translate axially relative to the valve housing in correspondence with the axial translation of the stem and the inner magnetic array, such that an axial position of the outer magnetic array provides an inherent physical position indication of the magnetically actuated rising stem valve.

A magnetically actuated rising stem valve, comprising:

• a stem;
• a magnetic clutch, wherein the magnetic clutch includes an inner magnetic array attached to the stem and an outer magnetic array attached to a manual actuator, wherein the inner magnetic array includes a plurality of constituent magnets or a plurality of distinct magnetic domains, wherein the outer magnetic array includes a second plurality of constituent magnets or a second plurality of distinct magnetic domains;
• a valve housing, including a pressure vessel encapsulating the stem, wherein the outer magnetic array surrounds a section of the valve housing;
• a threaded nut fixed relative to the valve housing, wherein the stem is threadedly engaged with the threaded nut such that rotation of the stem and the inner magnetic array causes axial translation of the stem and the inner magnetic array;
• wherein the axial translation of the stem and the inner magnetic array causes the magnetically actuated rising stem valve to move between an open position and a closed position;
• wherein actuation of the outer magnetic array via the manual actuator applies torque to the inner magnetic array, thereby causing the rotation of the stem and the inner magnetic array;
• and
• wherein the outer magnetic array is configured to translate axially relative to the valve housing in correspondence with the axial translation of the inner magnetic array, such that an axial position of the outer magnetic array provides an inherent physical position indication of the magnetically actuated rising stem valve.