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Valvetop D-Series Discrete Valve Controllers


The Valvetop D-Series is our flagship line of premium valve controllers. The D-Series offers spacious, rugged enclosures in aluminum, stainless steel, or resin that accommodate a multitude of available switch, bus communication, and position transmitter options. All D-Series valve controllers are intrinsically safe and offer flexibility for high/low currents with 4amp/120vac and 3amp/24vdc capabilities. Whether you require a non-incendive box or a more robust explosion proof / non-incendive controller, we have the platform to meet the needs of your environment and application. Valvetop D-Series features global certifications on each model sold. UL/CSA, ATEX, IECEX, GOST, FISCO, INMETRO, and NEPSI are just a few of the available certifications that will allow you to standardize plant processes on a global level.

Valvetop DXP




Valvetop DXP features a rugged, epoxy coated aluminum enclosure that is tropicalized inside and out to withstand harsh environments. Because of its durability and reliability the DXP is able to meet many worldwide certifications including CSA Class 1 Div 1 2 Groups A, B, C, and D and ATEX/IECEX Zone 0. The DXP is the most popular TopWorx switchbox, serving a wide variety of industries including Oil Gas, Refining, Petro-Chemical, Chemical, Power and more, which rely on the DXP to handle most applications. A popular option is the DXP-L2, which provides GO Switch position sensors that are field proven to deliver over 3 million cycles and hermetically sealed against intrusion from the harshest environments. Other options include – pilot valve, spool valve, bus networking, position sensors, position transmitter, ESD/partial stroke, conduit entries, and visual indicators.

Valvetop DXR



The Valvetop DXR discrete valve controller combines bus networking, pilot valve and position sensors into a single, globally certified, explosion proof enclosure that attaches to any automated valve package.

Valvetop DXS



The Valvetop DXS discrete valve controller combines bus networking, pilot valve and position sensors into a single, globally certified, explosion proof enclosure that attaches to any automated valve package.

VValvetop D-ESD




Suitable for use in SIL-3 applications, TopWorx ESD Valve Controllers provide a complete Partial Stroke Test Solution with unique features and functionality that enable partial stroke testing of emergency shutdown valves without disrupting or shutting down the process.

Valvetop DXN with Nuclear Approvals



The world's first modular, discrete indication package with a junction box for Global Containment.

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