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Topworx Switchboxes

TopWorx Limit Switch Box TXS-T21GMMM Valve Monitor

TopWorx Limit Switch Box TXS-T21GMMM Valve Monitor

£934.00 GBP
£934.00 GBP
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The TXS-T21GMMM is certified for use in flameproof, non-incendive, and general-purpose applications, adhering to international safety standards. Its highly visible, low-profile position indicator facilitates quick visual assessments of valve status, thereby enhancing operational efficiency. Additionally, the device supports a range of bus networks and sensor options, providing flexible communication capabilities suitable for industries such as oil and gas, water treatment, and manufacturing.

Key Features:

  • Heavy-Duty 316 Stainless Steel Housing: Built for maximum durability in harsh industrial environments, including marine and chemical exposure.

  • Dual Actuator Compatibility: Compatible with both pneumatic and electric actuators for greater flexibility in control systems.

  • Explosion-Proof & Intrinsically Safe: Certified for use in hazardous locations, ensuring safe operation in flammable and explosive atmospheres.

  • High-Visibility Mechanical Indicator: Enables quick and clear valve position confirmation, reducing operational risks.

  • Advanced Sensor Integration: Supports a range of sensor technologies for real-time data monitoring and process automation.

  • Multi-Network Communication: Works with various bus networks and industrial protocols, allowing seamless integration into SCADA and DCS systems.

The TopWorx TXS-T21GMMM Valve Monitor combines robust construction with advanced features to deliver reliable and efficient valve monitoring solutions across a range of industrial sectors.

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FAQ's

What is the difference between a valve and an actuator?

A valve controls the flow of a fluid (such as water, gas, or steam), while an actuator is the device that operates the valve — automatically opening, closing, or positioning it. Actuators can be electric, pneumatic, or hydraulic, depending on the application and control requirements.

What types of actuators are available?

The main types of actuators are:

Pneumatic actuators – use compressed air for fast, reliable operation.

Electric actuators – use electrical power for precise control.

Hydraulic actuators – use fluid pressure for high-torque applications.

Each type offers unique advantages depending on the environment, media, and system control needs.

How do I choose the right actuator for my valve?

To select the correct actuator, consider:

Valve type and torque requirement

Power source available (air, electric, or hydraulic)

Operating environment (temperature, humidity, hazardous area)

Control signal type (on/off or modulating)

Matching actuator torque and compatibility with the valve’s ISO mounting ensures reliable performance.

What are the main types of valves used in automation?

The most common valves in automated systems include:

Ball valves – for tight shutoff and quick operation.

Butterfly valves – for larger flow control with compact design.

Globe valves – for precise throttling and flow regulation.

Check valves – to prevent backflow.

Gate valves – for full bore flow isolation.

What’s the difference between a double-acting and spring-return actuator?

Double-acting actuators use air (or power) to both open and close the valve.


Spring-return actuators use air to open (or close) the valve, and a built-in spring to automatically return it to a safe position when power or air is lost — ideal for fail-safe operation.

How often should valves and actuators be serviced?

Regular maintenance intervals depend on operating conditions, but a good rule of thumb is to inspect every 6–12 months.

This includes checking for leaks, lubrication, seal wear, and actuator responsiveness to prevent unexpected downtime.