Servo drive for 2-way and 3-way valves and regulators with continuous or discontinuous output. The drive includes a carbonless DC motor, which is controlled by an electronic unit SUT (Sauter Universal technology) and has a maintenance-free transmission and an electronic shutdown depending on the load. It automatically recognizes the used control signal (continuous/switching) and displays it thanks to the two-color LED indication. The actuator automatically adapts to the valve lift value. Even in the event of a power failure, the drive remembers its position thanks to absolute distance measurement. It is possible to set a number of parameters of the drive via coded switches.

Installation is possible from an upright vertical to a horizontal position and is very easy. After applying the control signal, the spindle is automatically connected. Thanks to many adapters, the actuator can also be fitted to valves from other manufacturers. The drive is very quiet during operation.

Properties

• 24 VAC/VDC power supply.
• max. medium temperature 100 °C
• ambient temperature -10...55 °C
• ambient humidity 5...85% r.h
• protection IP54
• response time 200 ms
• stroke 20 mm
• lifting force 1000 N
• adjustment time 120/80 s
• parallel connection of up to 5 drives
• for valves and regulators with control: 0...10 V / 4...20 mA / 2- and 3-point

Suitable for 2-way and 3-way valves of the following series:

• VUN/BUN
• VUD/BUD
• VUE/BUE