The HELIOS KVD 315/4/60/35 EX duct fan is a powerful and explosion-proof fan specifically designed for direct installation in rectangular duct systems. It meets the stringent requirements of the ATEX directives, providing a safe solution for applications in potentially explosive environments. The housing is made of galvanized steel sheet and is equipped with standardized duct flange profiles, facilitating installation. Its space-saving design and service-friendly construction, which includes a swing-out motor-impeller unit, make this fan particularly user-friendly. The forward-curved drum impeller ensures high efficiency and low noise levels, while the aerodynamically optimized spiral housing further enhances efficiency. The fan is equipped with a three-phase external rotor motor that is maintenance-free and features low-noise ball bearings with long-term lubrication.

• Explosion-proof according to ATEX directives
• Space-saving design with swing-out motor-impeller unit
• High-quality forward-curved drum impeller for high efficiency
• Aerodynamically optimized spiral housing for improved efficiency
• Speed control via cold conductor when connected to MSA triggering device.