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  1. MVQ smart valve sensors
  2. Technology

How does the MVQ sensor work?

Evolution of valve feedback systems

Valve position feedback systems have evolved over time. Manufacturing facilities can be anywhere along this evolution process. In fact, different areas of the plant may use different methods of feedback.

  1. No feedback or visual indication only. 
  2. Switchboxes using mechanical limit switches that can stick, break or wear. Maintenance intensive.
  3. Non-contact inductive sensors solve the problems associated with mechanical switches. Generally, just signal open or closed positions.
  4. Continuous position feedback of a process valve can alert you to potential issues you can address prior to catastrophic failure. The smart valve sensor with solenoid outputs controls a local solenoid pilot valve directly for maximum system efficiency.

ifm’s MVQ smart valve sensor uses magnetic technology to detect the position of quarter-turn valves. It provides a continuous feedback signal and the valve’s position is retained even after a power outage.

Mechanical switchboxes are commonly used for valve position feedback.  But they often leak and that moisture ingress causes them to fail.  The MVQ has a protection rating of IP67 so ingress issues are eliminated.

Smart valve sensor with solenoid output (MVQ201)

ifm’s smart valve sensor MVQ201 offers precise valve position feedback and real-time control of solenoid valves. The smart valve sensor MVQ201 has two M12 connection ports that enable the customers to connect the valve sensor directly to a local solenoid valve. The control valve is used to remotely control a single/double-acting cylinder or rotary actuator. It is a very important part of a control loop in modern world of automated valve technology.

With this unique design, customers no longer need to run the cables all the way from control valve to electrical cabinet. Wiring complexity is reduced significantly and guarantees stable data transmission and precise position feedback.

For more information on solenoid control valves, visit the FAQs page.