The Helios ASD-SGD 500 is a durable bell mouth intake and protective guard made from galvanized sheet steel for corrosion resistance and strength. Featuring a large-diameter intake nozzle, it optimizes airflow efficiency while the guard prevents unwanted debris from entering ventilation systems. The adjacent side flange is fitted with a hole pattern conforming to DIN 24155 standards, ensuring straightforward installation. This component is ideal for heavy-duty industrial ventilation systems requiring reliable and efficient air intake solutions.