Axial Fresh Air & Staircase Pressurization Fan
Axial Fresh Air and Pressurization Fans are engineered to maintain positive pressure across emergency stairwells, elevator shafts, and escape corridors, preventing the ingress of toxic smoke and hot combustion gases during a fire. Because these units handle ambient outdoor fresh air rather than hot exhaust gases, high-temperature thermal resistance is generally not required; the focus is placed on high aerodynamic volume and stable static pressure control.
To match architectural footprints and spatial constraints, systems can be manufactured in three distinct configurations: direct-drive cylindrical axial fans, double-skin insulated cabinet fans, or sound-attenuated packaged axial box fans, satisfying a wide spectrum of capacity and acoustic demands.
Key Features
- Positive Pressurization: Generates reliable 50 Pa overpressure to block smoke penetration along escape corridors
- Versatile Configurations: Available as cylindrical axial, double-skin acoustic cabinet, or boxed axial configurations
- Aerodynamic Impeller Design: Adjustable-pitch high-efficiency aluminum or composite blades
- Acoustic & Energy Efficiency: Dynamically balanced rotor assemblies with anti-vibration mountings
- Automation & VFD Compatibility: Fully compatible with differential pressure transmitters, VFDs, and BMS panels
- Flexible Installation: Adaptable for rooftop curbs, vertical shaft entries, or plant room mounting
Application Fields
- Emergency fire escape staircases and protected lobbies
- Firefighting lifts and passenger elevator shafts
- High-rise residential towers, luxury hotels, and commercial plazes
- Hospitals, government institutions, shopping centers, and campuses
- All vertical mechanical ventilation shafts requiring continuous positive pressurization
