The Helios MRV 560 is a robust mounting ring designed for vertical fan installation, such as mounting on shaft walls. Made from galvanized sheet steel, it includes four mounting brackets allowing for direct fan attachment or the use of vibration dampers. This mounting ring is rated for smoke extraction applications with temperature resistance classifications of F300 and F400, ensuring reliable operation in fire safety systems. The MRV 560 offers a secure and durable mounting solution for vertical fans in critical ventilation setups.