Aluminium ventilation valves — precise airflow control in individual rooms

Ventilation valves are the terminal distribution devices used in mechanical ventilation (MVHR/VMC) systems in homes and small offices — systems where a single central unit serves multiple rooms through distribution ductwork. Unlike grilles, valves allow precise airflow adjustment by modifying the opening degree, enabling accurate system balancing. Supply valves are typically ceiling-mounted, distributing fresh air into living rooms, bedrooms and offices. Exhaust valves are mounted in bathrooms, kitchens and WCs — spaces generating humidity and odours. Airflow adjustment is achieved by rotating or translating the central valve element — changes in free area modify airflow without altering noise level. Noise below 25 dB(A) at nominal airflow is the standard for quality residential valves