The Helios ASD-SGD 355 is a high-quality bell mouth and guard component designed for efficient air intake in demanding ventilation environments. Made from galvanized steel, this large-diameter intake nozzle provides excellent durability and corrosion resistance. Its integrated protective guard enhances safety by preventing debris from entering the system. The adjacent flange includes a hole pattern in accordance with DIN 24155, allowing for straightforward and secure installation. Ideal for industrial or commercial ducting systems, the ASD-SGD 355 ensures reliable airflow performance and long-lasting operation.