Cabinet Centrifugal Fan Series (HVAC Ventilation & 280°C Fire Smoke Exhaust)

Cabinet Centrifugal Fan Series (HVAC Ventilation & 280°C Fire Smoke Exhaust)

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Engineered for high-volume commercial ventilation and critical fire emergency smoke extraction, our Cabinet Centrifugal Fan Series (HTFC Type) integrates a high-efficiency forward-curved multi-blade centrifugal impeller inside a heavy-duty sound-attenuating enclosure. Featuring 12 customizable inlet/outlet orientation angles, this versatile double-skin cabinet blower seamlessly adapts to complex ductwork layouts in high-rise buildings, underground parking garages, commercial kitchens, and industrial facilities.

Tested and certified in accordance with GA 211-2009 fire-resistance standards, the series offers dual operational configurations: Type A (External Motor) for emergency high-temperature smoke removal, and Type B (Internal Motor) for continuous energy-efficient indoor air exchange.

Dual Application Configurations: Type A & Type B

• Type A — Emergency Fire Smoke Exhaust (Motor-Mounted Outside Casing):

• Fire-Rated Capability: Specially engineered with an external belt-driven motor housing isolated from the airstream. Certified to withstand continuous operation at 280°C (536°F) for over 30 minutes during emergency building evacuations, as well as 100°C continuous operation for up to 20 hours.

• Primary Uses: Basement parking smoke extraction, stairwell pressurization, and commercial kitchen grease exhaust.

• Type B — General HVAC Ventilation (Motor-Mounted Inside Casing):

• Compact Integration: Motor is mounted within the acoustically lined cabinet to reduce total unit footprint and provide quiet, continuous supply and exhaust air exchange.

• Primary Uses: Office building fresh air supply, factory ventilation, and indoor air filtration systems.

Acoustic Insulation, Filtration & Modular Features

• Acoustic Double-Skin Enclosure: Built with lock-seamed galvanized steel panels lined with high-density acoustic insulation. Casing wall thickness and silencer length can be customized to achieve ultra-low noise thresholds in noise-sensitive environments.

• Multi-Stage Air Filtration Compatibility: Can be factory-fitted with G4 Pre-filters, M6/F8 Medium-Efficiency filters, or HEPA filters for cleanroom and indoor air quality (IAQ) management (housing length and pressure drop specs adjusted accordingly).

• Speed Control Flexibility: Available in Type I (Single-Speed), Type II (Dual-Speed Motor for day/night air modulation), or VFD Speed Modulation (recommended 25 Hz–50 Hz locking range).

• Explosion-Proof Certification (Ex-d IIBT4): Optional ATEX/IECEx compliant explosion-proof motor and spark-resistant construction for atmospheres containing flammable gases or vapors.