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Thermal actuator for unit valves with stroke indicator

AXT 301, 311

How energy efficiency is improved

Reliable actuation in efficient control systems


  • Actuation of unit valves and valves in surface heating and cooling systems as well as fan coils

  • Low-force fitting on the valve using adapter ring

  • NC “normally closed” and NO “normally open” versions

  • NC version with first-open function

  • Adaptation to valve using plastic adapter M30 × 1.5 or M28 × 1.5

  • Max. closing force 125 N

  • With 230 V or 24 V thermal expansion element

  • Large visible and tactile position indicator

  • Low-noise and maintenance-free

  • Contemporary design

  • High functional quality and service life

  • Version with integrated auxiliary contact

  • Standard version with 1-metre cable permanently connected

  • Version with 2 m or 5 m plug-in cable

  • Can be mounted in any position, even suspended under the valve

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