Magnetically actuated pipe valve with torque-limiting clutch and position indication

A magnetically actuated valve with a magnetic clutch, comprising:

• an actuator stem, rotation of which is configured to actuate the valve, causing the valve to move between an open position, a closed position, and one or more semi-open positions;
• a magnetic clutch, wherein the magnetic clutch includes an outer magnetic array, wherein the outer magnetic array includes a plurality of constituent magnets or a plurality of distinct magnetic domains, surrounding a segment of the actuator stem;
• a valve housing, defining a pressure vessel of the valve, encapsulating the actuator stem, wherein the outer magnetic array surrounds a section of the valve housing;
• and
• a position indicator attached to an outside surface of the valve housing configured to detect a configuration of the valve;
• wherein the plurality of constituent magnets or the plurality of distinct magnetic domains in the outer magnetic array are organized as a Halbach array;
• wherein the magnetic clutch is configured to slip without breaking the actuator stem;
• wherein the magnetic clutch is configured to automatically reset and realign after slipping due to tight spacing of the plurality of constituent magnets or the plurality of distinct magnetic domains;
• wherein actuation of the outer magnetic array applies torque, thereby actuating the actuator stem.