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Reduce downtime

Detect seal damage

Seals inside quarter-turn valves become damaged over time. Chemical incompatibility between the seal and fluid causes seals to split or swell.  Mechanical wear due to frequent valve cycling reduces the size of the seal.

Today’s manufacturing plants experience unplanned downtime when these seals are damaged and product leaks through the valve. In many cases, the problem isn’t detected until further downstream when the product is tested and quality is poor. This results in all in-process product to be scrapped. What if a sensor could predict when the valve will fail?

Detect build-up of foreign materials

Poor raw material supply quality, sticky or viscous media, a waste system that must accommodate solids/oils, or a corroded pipe can all prevent a valve from closing completely.  The ability to monitor the closed position of a valve can save tens of thousands of dollars in scrapped material and downtime to replace the valve. Productivity and cycle time can also be affected as the time to close the valve increases with build-up.

Fast and simple installation

Downtime is expensive. With the MVQ sensor, ifm provides the simplest mounting concept in the industry.

  1. Attach supplied puck to valve stem with the supplied screw.
  2. Place MVQ on top of the puck and attach to actuator with 4 supplied screws.
  3. Connect power and I/O with one standard 5-pin M12 cordset.

Easy teach methods

Using ifm LR Device software, QA0011

  • Connect your PC to the sensor and program the parameters needed


  • Visualization screen shows status of valve position 


Using inductive sensor

The top of the MVQ is equipped with an inductive sensor. 

  • Cycle valve open and move a metal object (e.g., screwdriver) in range of teach button.
  • Cycle valve closed and again move a metal object (e.g., screwdriver) in range of teach button.
  • Lock the sensor in the field to prevent tampering.