The Helios KTV 125 and KTVA 125 air valves are suitable for both supply and exhaust air functions in rooms where no special fire protection is required. Airflow can be easily adjusted by rotating the valve plate to control the volume of air passing through.
These valves feature a clamp spring holder that allows for tool-free installation — simply push the unit into a duct or wall opening for a secure fit. Ideal for residential and light commercial applications, they offer a practical and efficient solution for regulating airflow in ventilation systems.