TopWorx Limit Switch Box Flexibility And Reliability

Topworx Switchbox are a world leading manufacturer at the forefront of innovation and development for Valves Controllers & Position Sensors to the Petrochemical, Oil & Gas, Chemical & Power Industries. The wide specifications and designs for the high performance TopWorx switchbox enable the products to be used in any hazardous location, anywhere in the world bringing reliability, flexibility and standardisation to a once complicated sourcing of equipment for major global companies.

DXP D-Series Discrete Limit Switch Valve Monitors

The Topworx range of DXP Switchbox features a robust and rugged design complete with epoxy coated aluminium housing to protect the unit from the most severe and harshest operating conditions. With this durability comes the Topworx DXP's ability to achieve numerous worldwide certifications. The DXP Switchbox is the most popular product amongst the Topworx range of valve monitoring systems and is used across a wide range of industries.

Enclosure: Tropicalized Aluminium
Bus/Sensors: HART, AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Fieldbus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Explosion/Flameproof, Non Incendive, Dual Exd Exia, General Purpose
Regional Certification: InMetro, FISCO, KOSHA, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button, Partial Stroke
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
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DXS D-Series Stainless Steel Limit Switchbox Valve Monitor

The TopWorx DXS range of valve position monitors are constructed of a 316 stainless steel body housing combining technologies such as bus networking, pilot valve integration and position sensors into a globally certified, explosion proof enclosure capable of being used in the most demanding of environments. The unit can be attached to any actuated valve package assembly with various mounting bracket adaptions.

Enclosure: 316 Stainless Steel
Bus/Sensors: HART, AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Fieldbus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Explosion/Flameproof, Non Incendive, Dual Exd Exia, General Purpose
Regional Certification: InMetro, FISCO, KOSHA, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button, Partial Stroke
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
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DXR D-Series Discrete Limit Switch Valve Monitors

The TopWorx DXR valve position monitor combines all the versatility of the DXR platform into a robust composite resin housing. Providing a corrosion proof solution for some of the harshest environment applications. The D-Series valve controller carry certification approvals such as IECEx, ATEX & UL. Combined with GO Switch sensor technology the DXR delivers a unrivalled market leading monitoring system whether this be for high or low temperatures.

Enclosure: Composite Resin
Bus/Sensors: HART, AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Fieldbus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Non Incendive, General Purpose, Increased Safety
Regional Certification: InMetro, FISCO, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button, Single Palm, Dual Palm, Manual Reset
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
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TVF T-Series Non Incendive Limit Switch Valve Monitors

The TopWorx TVF valve monitoring systems provide the perfect solution for all of your non-incendive applications. Delivering full functionality with a compact and cost effective unit the TVF is available with a variety of sensors including SPDT, ASI, Profibus & DPDT. The clear resin lid offers a highly visible impact resistant cover housing colour coded twist set cams for user friendly adjustment. Green and red LED indicators are also available as a visual addition for low light environments.

Enclosure: Tropicalized Aluminium Base C/W Clear Resin Lid
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, 4-20mA, DPDT, Gold Plated
Area Classification: Intrinsically Safe, Non Incendive, General Purpose
Regional Certification: InMetro, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button
Pilot Valves: 24VDC, 220VAC, 110VAC, Stainless Steel, Aluminium
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TVH TX-Series Stainless Steel Limit Switch Valve Monitors

The extemely rugged and robust TopWorx TVH is at its best amongst highly corrosive and heavy washdown environment applications. A stainless steel enclosure provides not only an impact resistant hosuing but a valve position monitor specially engineered to last the distance no matter what you throw at it. Direct mount capability to most quarter turn pneumatic actuators reduces the overall height of actuated valve packages with a compact solution. 

Enclosure: 316 Stainless Steel Base C/W Clear Resin Lid
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Profibus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Non Incendive, General Purpose
Regional Certification: InMetro, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button
Pilot Valves: 24VDC, 220VAC, 110VAC, Stainless Steel, Aluminium
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TVL TX-Series Tropicalized Aluminium Limit Switchbox

A light, compact and robust aluminium housing from the TopWorx TVL limit switch valve monitor provides an extemely cost effective solution for your positioning feedback requirements whilst maintaining some of the key features from the TX series. The TVL again allows for direct mount capability reducing cost and space key attributes including integral solenoid valves, sensors, 4-20mA, profibus and AS-Interface (ASI).

Enclosure: Tropicalized Aluminium Base C/W Clear Lid
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Profibus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Non Incendive, General Purpose
Regional Certification: InMetro, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
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TVA T-Series Limit Switch Box Valve Position Monitors

Modular by dsesign, the TVA range or general purpose valve position monitors from Emerson TopWorx offer an extemely flexible and adaptable solution for your feedback requirements. Outstanding value is achieved through the high impact resin housing and clear, highly visible display. The TVA is capable of housing a variety of Bus Networks and Sensors you will be used to from the TopWorx brand whilst keeping the costs to a minimum.

Enclosure: Composite Resin Housing C/W Clear Lid
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, 4-20mA, DPDT, Profibus, DeviceNet
Area Classification: Intrinsically Safe, Non Incendive, General Purpose
Regional Certification: InMetro, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching, Dual Push Button
Pilot Valves: 24VDC, 220VAC, 110VAC, Stainless Steel, Aluminium
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TXP TX-Series Aluminium Limit Switch Valve Monitors

The TopWorx TXP series is constructed of a solid aluminium enclosure suitbale for every environment and is potentially the most versatile in the range. This Flameproof, Explosionproof, Intrinsically Safe, Non-Incendive switch box is accompanied with captive cover bolts and indicator screws with pre-adjusted cams set at 90° for quick and easy installation. The impact resistant, low profile beacon indicator offers high visibility with intuitive colours for clear monitoring.

Enclosure: Tropicalized Aluminium
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Profibus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Explosion/Flameproof, Non Incendive, Dual Exd Exia, General Purpose
Regional Certification: InMetro, Japan, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
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TXS TX-Series Stainless Steel Limit Switch Valve Monitors

The TXS series valve limit switchbox delivers everything from the TXP model with the additional corrosive and washdown protection of a 316 stainless steel housing. Most commonly used in the food, pharmaceuitcal, chemical and offshore industris the TXS switchbox is available from stock for standard sensor requirement or a short manufacturing lead time for more complex monitoring requirements. The TXS offers a fit and forget platform to build on for all environments.

Enclosure: 316 Stainless Steel
Bus/Sensors: AS-Interface, SPDT GO Switch, P&F NJ2-V3-N, Profibus, 4-20mA, DPDT
Area Classification: Intrinsically Safe, Explosion/Flameproof, Non Incendive, Dual Exd Exia, General Purpose
Regional Certification: InMetro, Japan, NEPSI, PESO, EAC
Visual Display: Green/Red, Black/Yellow, 3-Way L Port, 3-Way T Port, 180 T Port
Manual Override: Push Button Momentary/Latching
Pilot Valves: 24VDC, 220VAC, 110VAC, Piezo, Stainless Steel, Aluminium
Find Out More

Specifications & Designs

The wide specifications and designs for the high performance Topworx switchbox enable the products to be used in any hazardous location, anywhere in the world bringing reliability, flexibility and standardisation to a once complicated sourcing of equipment for major global companies.

Available in three different material construction options of Composite Resin, Aluminium & 316L Stainless Steel, the Topworx switchbox, including the TVG, TVC, TXP & TXS offer protection from ZONE 0 (Intrinsically Safe) through to ZONE 2 (Hazardous Areas). Temperatures ranging from Sub Zero -50 to 204DegC.

Wireless Technologies including DeviceNet, As-Interface, Foundation Fieldbus, Profibus & HART enable predictive maintenance in the D-Series DXP, DXR & DXS Series Valve Controllers and therefore cutting the risk and cost of any unscheduled down time.

Topworx Switchbox Certification

With Topworx’s constant drive for product development this has seen the company achieve Approvals & Certification for IECEx, ATEX, GOST, InMetro, UL, CSA, JIS, KOSHA & NEPSI. As Actuation Valve & Control’s first choice for Process Automation, this has seen the Topworx Switchbox reach installations in several continents and the demand is growing.

We are able to combine Emersons additional product ranges of quarter turn pneumatic rack and pinion actuators and pilot solenoid valves to provide fully automated and monitored systems. This includes the Hytork XL, Elomatic F Series and Bettis RPX range of actuators with brackets available to suit your preferred TopWorx series. 

Further technical details can be found on the individual product types within this page and we welcome any queries or technical help you many need in specifying a Topworx Swithchbox into your application. 

Topworx Valve Monitor

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