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The FQM fail safe unit in SIL version is an innovative and safe actuation solution for opening or closing valves in case of emergencies during power failures. The device is suitable for safety-related applications up to SIL 3.
The torque required in an emergency is provided via the energy mechanically stored in a constant force spring. The innovative constant force spring motor offers considerable advantages compared to conventional solutions:
150 Nm to 1200 Nm
Fail safe unit for open-close duty150 Nm – 1200 Nm
8 s – 54 s
80 ° – 100 °
-30 °C – +70 °C