The Helios VK 200 is a flat-profile overpressure shutter designed for efficient closure of 200mm air outlets. It operates automatically, opening when the fan is active and closing when the system is off, helping to prevent air backflow and intrusion of debris or insects.
Engineered for performance, it supports airflows up to 8 m/s. The number of louvres is adjusted according to the size to ensure smooth and silent operation. Ideal for both residential and commercial ventilation systems, this shutter offers a reliable and space-efficient solution for external air outlet management.