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Leverless position sensing and discrete valve control technology trusted in harsh industrial environments since 1984.

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About TopWorx

About TopWorx

TopWorx was founded in 1984 in the United States to manufacture industrial sensors and controls for monitoring and controlling automated valves and other field devices. The company built its reputation on reliability in harsh, demanding process environments where conventional switches often failed.

TopWorx pioneered GO Switch leverless mechanical position sensing technology, which revolutionized valve monitoring reliability in applications exposed to vibration, washdown, or extreme temperatures. The company's TopWorx Valvetop discrete valve controllers connect on/off valves to a wide variety of fieldbus networking protocols, giving plants flexible integration options.

Emerson Electric Co. acquired TopWorx, a Louisville, Kentucky-based supplier of valve control and position sensing solutions, expanding Emerson's valve instrument offering and extending its PlantWeb digital plant architecture to on/off valves and other field instruments. TopWorx now operates as part of Emerson Process Management with additional locations in the United Kingdom, Singapore, and South Africa, and ChatMRO indexes the TopWorx catalog so buyers can search by switch type, valve controller model, or network protocol.

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Frequently asked questions

When was TopWorx founded?

TopWorx was founded in 1984 in the United States to manufacture industrial sensors and controls for automated valves. The company built its reputation on reliability in harsh process environments.

What is TopWorx's signature technology?

TopWorx pioneered GO Switch leverless mechanical position sensing technology, which revolutionized valve monitoring reliability in harsh environments. This technology remains a core part of the company's product line today.

Is TopWorx part of a larger company?

Yes, Emerson Electric Co. acquired TopWorx, expanding Emerson's valve instrument offering and extending its PlantWeb digital plant architecture. TopWorx now operates as part of Emerson Process Management.

What do TopWorx Valvetop controllers do?

TopWorx Valvetop discrete valve controllers connect on/off valves to a variety of fieldbus networking protocols. This gives plants flexible options for integrating valve control into their existing automation systems.

Where does TopWorx have offices?

TopWorx is based in Louisville, Kentucky, with additional locations in the United Kingdom, Singapore, and South Africa. This global presence supports customers across process industries worldwide.

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