The Helios KSD 60÷30−35 is a duct-mounted silencer designed to reduce sound transmission in ventilation systems. It features a sturdy housing made from galvanized sheet steel, with flanged connections tailored to fit standard duct fans. Suitable for installation on both suction and discharge sides of the duct, it offers versatile noise control performance.
The internal surfaces are lined with high-density mineral wool to absorb sound, while the airflow side is protected by a fleece layer that prevents fiber wear and contamination. This construction ensures long-lasting acoustic performance and clean airflow, making it ideal for a wide range of HVAC applications.