Products for renovating, maintaining, retrofitting and refurbishment

Retrofit: Replacing actuators

We make your HVAC installation fit for the future. Our modern, energy-efficient actuators can be fitted onto practically all existing valves. SAUTER actuators are powerful and economical. They can be used in many applications, fitted quickly and are immediately ready for use.

The electric stroke actuators

The electric actuators from SAUTER stand for optimum operating convenience and high energy efficiency. In stand-by mode, in particular, the energy consumption of the actuators is minimal. The patented automatic valve coupling enables fast, uncomplicated fitting of the actuator onto the valve and easy, safe commissioning. The sturdy construction guarantees durability without any additional maintenance work. The high-quality mechanical transmission system ensures a high level of precision and low operation noise.

The thermal actuators

The thermal actuators from SAUTER feature excellent compatibility with a wide range of unit valves. With a thrust of up to 125 N, the SAUTER AXT is one of the most powerful thermal actuators. It is suitable for radiator heating systems, underfloor heating, chilled ceilings, fan coil units and much more.


The patented Low-Force-Locking enables installation on the valve without any particular force and in just a few steps. This is how you also install SAUTER AXT 2 actuators in locations that are hard to access. With its intelligent electric connector, the SAUTER AXT 2 can be connected to the power supply in moments and activated individually.
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Retrofit actuator SAUTER vialoq AVM 1000