The Helios ASD-SGD 280 is a high-quality bell mouth and guard unit engineered for optimal air intake performance in industrial and commercial ventilation systems. Manufactured from galvanized steel sheet, it offers excellent durability and resistance to corrosion. The large-diameter nozzle design ensures smooth airflow into the system, while the integrated protective guard enhances safety by preventing foreign objects from entering. The unit features a flange with a standard hole pattern as per DIN 24155, enabling secure and accurate attachment to compatible ductwork. This accessory provides a reliable and efficient solution for demanding airflow applications.