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 minimizing energy loss or air leakage.
Optimized for airflow speeds of up to 8 m/s, the VK 80/50 provides reliable performance in a range of applications. The number of louvres depends on the size, ensuring smooth and responsive operation. This shutter is ideal for use with Helios fans and duct systems where backdraft protection and automatic airflow control are essential.