The Helios FM 180 EX is a flexible sleeve designed specifically for use with explosion-proof fans. It acts as a connector between the fan and duct system, effectively preventing the transmission of structure-borne noise while also compensating for any assembly misalignments. Made from durable PVC fabric, the elastic cuff ensures a reliable and secure fit. The FM 180 EX includes two hose clamps for fast and straightforward installation, making it ideal for demanding industrial environments where explosion protection and vibration damping are essential.