Understanding Non Fail-Safe Actuators
Understanding Non Fail-Safe Actuators: A Guide to Belimo Solutions
In the HVAC and building automation world, actuator technology plays a critical role in ensuring systems run smoothly and efficiently. One type that is widely used in everyday applications is the Non Fail-Safe Actuator. As an authorised supplier of Belimo Non Fail-Safe Actuators, we work with a product range that delivers exceptional reliability, performance, and precision control in a variety of building environments.
What Are Non Fail-Safe Actuators?
Non Fail-Safe Actuators are motorised devices designed to control the position of dampers and valves without an automatic return to a predetermined safe position in the event of power loss. Unlike fail-safe models, which use a spring or capacitor to revert to an open or closed state, non fail-safe designs maintain their last position until power is restored or they are manually adjusted.
This design is ideal for applications where maintaining the last operational state is acceptable or even preferable, such as in comfort ventilation systems, certain heating loops, or non-critical zones in HVAC networks.
Benefits of Belimo Non Fail-Safe Actuators
Belimo has built a reputation for precision engineering and product longevity, and their Non Fail-Safe Actuators are no exception. Key benefits include:
High Energy Efficiency – Belimo designs its actuators to minimise energy consumption while delivering consistent torque output.
Compact, Versatile Design – Available in a range of torque ratings, shaft configurations, and control options for easy integration into new or retrofit projects.
Quiet Operation – Designed for smooth and silent movement, perfect for noise-sensitive environments.
Long Service Life – Robust components and quality testing ensure long-term reliability, reducing maintenance requirements.
Typical Applications for Non Fail-Safe Actuators
Belimo’s Non Fail-Safe Actuators are widely used across HVAC and building control applications, including:
Air Handling Units (AHUs) – Regulating airflow through dampers without requiring automatic fail-safe repositioning.
Zone Control in Ventilation Systems – Holding the last position in case of a power outage, avoiding unnecessary operational resets.
Heating and Cooling Loops – Controlling valves in secondary circuits where immediate fail-safe action is not essential.
Laboratories and Commercial Offices – Maintaining airflow patterns to avoid disruption during temporary power interruptions.
Non Fail-Safe vs Fail-Safe Actuators
The decision between a fail-safe and a non fail-safe actuator comes down to application requirements. If your system must revert to a safe state during a power loss—such as in smoke control or certain safety-critical processes—a fail-safe actuator is necessary. However, where the system can remain in its last position without risk, Non Fail-Safe Actuators offer a more cost-effective and energy-efficient choice.
Belimo’s engineering excellence ensures that every Non Fail-Safe Actuator is manufactured to the highest standards. With advanced control technologies such as modulating, on/off, and 3-point control options, Belimo actuators can be precisely matched to your project’s requirements. They are also designed for easy installation, with clear mounting instructions and adaptable accessories.
Conclusion
Whether you are upgrading an existing HVAC system or designing a new build, Belimo Non Fail-Safe Actuators offer a dependable, efficient, and long-lasting solution. By understanding where these actuators fit best, you can ensure your building operates at peak efficiency without unnecessary complexity or cost.
For expert advice on selecting the right actuator for your application, contact our team today.
We can provide full technical support, product specifications, and competitive pricing on the entire Belimo range.
