Monitoring of Quarter Turn Actuators

Chemical plants have a lot of valve positions that require monitoring. Complex designs with two proximity switches, initiators and housings are nowadays obsolete.

DSU-35 dual sensors by Turck can simply be mounted on any standard valve. The rounded housing bay prevents contamination between initiator and sensor housing. In addition to the digital acquisition of the valve position, Turck also offers the analog version Ri360-DSU35 for control valves.


  • The inductive DSU35 dual sensors capture the valve position of quarter turn actuators
  • Easiest assembly and adjustment
  • Detergent-resistant plastic housing
  • Various electrical output signals: Intrinsically safe, AC/DC 2-wire, DC 3-wire, analogue output, NAMUR, AS-i, Device-Net
  • SIL 2

  • The dual sensor is aligned with valve and valve operating mechanism

  • Thanks to the yellow pins, the valve position can clearly be seen from any position

  • Turck offers the high-resolution analog version RI360-DSU35 for control valves

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