DXS Stainless Steel Valve Controller | TopWorx Explosion Proof

TopWorx DXS Stainless Steel Valve Controller The TopWorx™ DXS is a 316 stainless steel valve controller that combines bus networking, pilot valve, and position sensors into a single globally certified, explosion-proof enclosure that attaches to any automated valve package.

D-Series discrete valve controllers can survive in virtually any plant condition. Its corrosion resistance and heavy-duty construction enable superior performance in the most demanding applications. These controllers carry IECEx, ATEX, and UL certifications in a single model, making it easier for global customers to standardize operations across their facilities. D-Series controllers also carry NEPSI, KOSHA, InMetro, PESO, and EAC certifications.

Engineered with GO™ Switch sensing technology, the D-Series line delivers best-in-class capabilities. TopWorx™ GO™ Switches are hermetically sealed to outperform all other position sensors in hot, cold, wet, dirty, abusive, corrosive, and explosive conditions. Its unique cam design allows quick and accurate setting of the GO™ Switch positions, reducing deadband and hysteresis to a minimum.

DXS Stainless Steel Valve Controller Features

Zone 0 Intrinsically Safe
Zone 1 Flameproof/Explosion Proof
Stainless Steel Enclosure 0 Intrinsically Safe
Stainless Steel Enclosure
GO™ Switch Leverless Limit Switches
FOUNDATION Fieldbus
AS-Interface
DeviceNet

DXS Stainless Steel Valve Controller Specifications

Materials of Construction

Enclosure Cast: 316 Stainless Steel
Fasteners: 316 Stainless Steel
Shaft: 316 Stainless Steel
Shaft Bushing: 316 Stainless Steel
Indicator Dome: Polycarbonate, UV F1 rated
Seals: O-ring seals available in: Buna & Silicone

Fastener Torque Specifications

Enclosure Housing Bolts: 8 ft.-lbs [10.8 N·m] +/-10%
Indicator Dome Screws: 320 in-oz. [2.3 N·m] +/-10%
Bottom Mounting Holes: 10 ft.-lbs [13.6 N·m] +/-10%

DXS Stainless Steel Valve Controller Dimensions

Q&A Section with Expand/Collapse Icons

DXS Stainless Steel Valve Controller Q & A

+What distinguishes the DXS Valve Controller from other DX series models?

The DXS features a full stainless steel enclosure specifically engineered for corrosive and hygienic environments. Unlike coated aluminum housings, stainless steel resists chemical attack, salt exposure, and aggressive washdowns. This ensures long-term structural integrity in demanding installations. The enclosure also supports sanitary and hygienic processing requirements. Its design prioritizes durability where environmental exposure is severe.

+Why is stainless steel construction critical in certain industries?

Industries such as offshore oil production, wastewater treatment, pharmaceuticals, and food processing require corrosion-resistant equipment. Stainless steel prevents rust contamination and structural degradation. It also withstands high-pressure washdowns and caustic cleaning agents. This makes it suitable for hygienic compliance and marine atmospheres. The material ensures extended lifecycle performance.

+What control and monitoring functions are integrated?

The DXS integrates valve position limit switches, solenoid control valves, terminal wiring, and visual indication within one enclosure. This consolidation reduces external wiring and simplifies actuator automation. It enables both control actuation and feedback signaling from the same device. The integrated design improves reliability and installation efficiency. It also supports hazardous area automation.

+What environmental protections are supported?

The controller is designed for explosive atmospheres, washdown areas, and corrosive chemical exposure. Sealed construction prevents the ingress of moisture and contaminants. Hazardous location certifications enable safe deployment in volatile environments. Temperature and vibration resistance further enhance durability. These protections ensure continuous operation in extreme conditions.

+What applications benefit most from the DXS?

Marine platforms, chemical plants, pharmaceutical facilities, and hygienic food processing lines commonly use the DXS. It is ideal where sanitation, corrosion resistance, and hazardous safety overlap. Automated valves controlling aggressive fluids often require stainless enclosures. The controller ensures reliable monitoring in these challenging installations. Its durability reduces lifecycle maintenance costs.

TopWorx™ Discrete Valve Controllers for On/Off Valves Brochure

Download TopWorx™ DX Stainless Steel Indicator Flyer

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