Helios HELI KVD 250/4/50/30 EX duct fan, EX-protected, speed controllable according to R

The HELI KVD 250/4/50/30 EX duct fan is a powerful and explosion-proof radial fan specifically designed for direct mounting 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. The fan features a forward-curved drum impeller that ensures high efficiency and quiet operation. The aerodynamically optimized spiral housing and dynamically balanced impeller-motor unit contribute to the efficiency and longevity of the device. Additionally, the speed control via a cold conductor allows for flexible adjustment to the specific ventilation requirements.

• Explosion-proof according to ATEX directives
• Maintenance-free three-phase external rotor motor
• Aerodynamically optimized spiral housing
• Service-friendly, swing-out motor-impeller unit
• Quiet ball bearings with long-term lubrication.