Subject to Lead Time - Contact for more information
TopWorx Limit Switch Box TVA-52WGNAM Valve Monitor
TopWorx Limit Switch Box TVA-52WGNAM Valve Monitor
Couldn't load pickup availability
The TopWorx TVA-52WGNAM is a modular valve position monitor from the TVA series. Housed in a high-impact resin enclosure, it provides reliable visual and electrical feedback of a quarter-turn valve’s status (open/closed) while offering cost-efficient performance for general-purpose installations. It features a 90° visual indicator (Green = OPEN / Red = CLOSED) and is designed for environments that do not require full explosion-proof rating but demand durability and visibility.
This configuration makes the TVA-52WGNAM ideal for direct-mounting to quarter-turn actuators (ball, butterfly, plug) where you need reliable feedback AND value rather than full heavy-duty/explosion-proof certification.
Key Features
Compact, resin (composite) enclosure for cost-efficient, general-purpose use.
Visual indicator (90° display): Green = OPEN, Red = CLOSED, for quick status check.
2 inductive sensors (or sensor/bus module) for reliable electrical feedback of valve position.
NAMUR stainless-steel shaft interface for direct actuator mounting.
Modular design allows selection of bus/sensor modules, approvals, visual display, and conduit entries.
Non-incendive / intrinsically safe options suitable for safe area or lower-hazard applications.
Suitable for mounting on quarter-turn actuators where visual + sensor feedback is required without full explosion-proof spec.
Share
Enquire Online!
FAQ's
What is the difference between a valve and an actuator?
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.