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Products
Helios (2146)
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Helios Fans VK 450
The Helios VK 450 is a flat-design overpressure shutter engineered for efficient ventilation control. It automatically opens when the fan is running and closes upon shutdown, preventing unwanted backflow and maintaining system integrity. Capable of handling airflow velocities up to 8 m/s, the shutter ensures reliable performance under typical venti ...
Helios Fans VK 50/25
The Helios VK 50/25 is a flat-design overpressure shutter that automatically opens when the fan operates and closes when it stops, preventing unwanted airflow reversal. Designed to handle airflow velocities up to 8 m/s, it offers effective backdraft protection for ventilation systems. The number of louvres varies with shutter size, optimizing airfl ...
Helios Fans VK 50/30
The Helios VK 50/30 overpressure shutter features a flat design and automatically opens when the fan is running and closes when it stops, preventing reverse airflow. Suitable for flow velocities up to 8 m/s, it ensures reliable ventilation system protection. The shutter includes a variable number of louvres tailored to the size for optimal airflow ...
Helios Fans VK 500
The Helios VK 500 overpressure shutter features a flat design that automatically opens when the fan is operating and closes when the fan stops, preventing unwanted reverse airflow. It is suitable for use at flow velocities up to 8 m/s. Depending on the size, the number of louvres varies to provide optimal airflow management. This shutter is ideal f ...
Helios Fans VK 60/30
The Helios VK 60/30 overpressure shutter features a flat design that automatically opens when the ventilation fan is switched on and closes upon fan shutdown, preventing unwanted reverse airflow. It is designed to operate effectively at flow velocities of up to 8 m/s. The number of louvres varies according to the shutter size to ensure optimal airf ...
Helios Fans VK 60/35
The Helios VK 60/35 overpressure shutter is designed with a flat profile that automatically opens when the fan is activated and closes when the fan is turned off, helping to prevent reverse airflow. It is suitable for operation with airflow velocities up to a maximum of 8 m/s. The number of louvres varies depending on the size of the shutter, ensur ...
Helios Fans VK 630
The Helios VK 630 overpressure shutter features a flat design that automatically opens when the connected fan is running and closes when the fan is switched off. It is designed to handle airflow velocities up to a maximum of 8 m/s. The number of louvres adjusts according to the shutter size, optimizing airflow while providing effective protection a ...
Helios Fans VK 70/40
The Helios VK 70/40 overpressure shutter features a flat design that automatically opens when the fan is operating and closes when the fan is turned off. It is suitable for use with airflow velocities up to a maximum of 8 m/s. The number of louvres varies according to the shutter size, allowing optimized airflow and reliable protection against backdrafts ...
Helios Fans VK 710
The Helios VK 710 is a compact overpressure shutter designed to control airflow in ventilation systems. With a flat, space-saving design, it features automatic opening and closing of louvres that activate in response to the fan’s operation — opening when the fan is switched on and closing when it turns off. This automation ensures efficient airflow manageme ...
Helios Fans VK 80/50
The Helios VK 80/50 is a compact overpressure shutter designed for controlled ventilation and efficient airflow regulation. With its flat, low-profile design, it integrates seamlessly into duct and fan systems. The louvres automatically open when the fan is in operation and close when it’s switched off, ensuring airflow is only permitted when needed and m ...