The Helios SVE 160 is a cost-effective insert for volume regulation in central ventilation ducts. It enhances system efficiency by combining volume control, pressure regulation, and acoustic insulation in one unit. Made from mould- and fire-resistant foam, it complies with emission class M1 and fire class B standards, ensuring no harmful smoke or toxic gases are released during a fire. Pre-cut openings make airflow adjustment simple and precise. The SVE 160 is suitable for use with all standard poppet valves, providing a reliable and safe solution for modern ventilation systems.