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DBF Fan Box

Fan Cabinet Series Products

1. Overview

Our DFX, DFS, and HTFC series fan cabinets are suitable for applications requiring ventilation or smoke extraction, including hotels, educational institutions, auditoriums, theaters, high-end residential buildings, and industrial and mining facilities. These fan cabinets feature low noise, low vibration, stable and reliable operation, and easy installation. They are widely used in smoke extraction and air-conditioning ventilation projects.

DFX Series

(1) The DFX series is designed for ventilation. It uses a high-quality, high-efficiency, double-inlet centrifugal fan, matched with a quality motor and bearings. The cabinet frame is made from high-quality galvanized steel profiles, making it lightweight, strong, and corrosion-resistant. The cabinet panels are made of high-quality steel plate and can be filled with sound- and heat-insulating material according to customer requirements. The complete unit operates quietly, smoothly, and reliably. Depending on the centrifugal fan drive method, models are available with either a directly coupled external-rotor motor or a belt drive.

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DFX Series Air Purification Fan Cabinets

(2) The DFX series air purification fan cabinet is a newly developed product designed specifically for air purification. It is primarily used in clean environments with stringent cleanliness requirements, such as electronics factories, food processing workshops, and hospital wards. The cabinet is equipped with a high-efficiency, energy-saving centrifugal fan, air purification filter modules, and an electric auxiliary heating module. It features excellent performance, high efficiency, low energy consumption, low noise, a high filtration and purification rating, and a flexible functional design. It is widely used in building ventilation systems for electronics, pharmaceuticals, food processing, chemicals, printing, coating, scientific research, catering, and other applications requiring clean air. Filter modules can be selected and combined to suit different operating environments and conditions. Additional functions, such as activated carbon odor removal, electrostatic dust collection, and ultraviolet disinfection, can also be added as required.

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DFS Series

The DFS series consists of duct-mounted centrifugal fans for ventilation. It uses a high-quality, scroll-less centrifugal fan. The cabinet frame is made from high-quality galvanized steel profiles, making it lightweight, strong, and corrosion-resistant. The cabinet panels are made of high-quality steel plate and can be filled with sound- and heat-insulating material according to customer requirements. The complete unit operates quietly, smoothly, and reliably. It features low noise, high efficiency, easy maintenance, a compact design, a small footprint, and strong adaptability.

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HTFC Series

The HTFC series consists of centrifugal smoke-extraction fan cabinets for fire protection, featuring an externally mounted motor. It uses a high-quality, high-efficiency, double-inlet centrifugal fan, matched with a quality motor, bearings, and belt. The frame is made from high-quality galvanized steel profiles, making it lightweight, strong, and corrosion-resistant. The cabinet panels are made of high-quality steel plate and can be filled with sound- and heat-insulating material according to customer requirements. The complete unit operates quietly, smoothly, and reliably. In addition to routine ventilation, these products can operate normally for 30 minutes at an ambient temperature of approximately 280℃ during a fire, providing smoke extraction. When equipped with a two-speed motor, the fan runs at low speed for routine ventilation and can switch to high speed during a fire for smoke extraction.

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BHTFC Series

The BHTFC series consists of explosion-proof cabinet-type centrifugal fans. The company currently holds production qualifications for explosion protection ratings Exd IIBT4 and Exd IICT4. These fan cabinets can convey gases that are flammable, explosive, or contain large amounts of dust. They meet the ventilation and air purification and dust removal requirements of various factory buildings and workshops, and are widely used in explosion-hazardous environments, including the petrochemical industry.

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Operating Conditions for Fan Cabinet Products

1. Power supply: Three-phase, 380V/50Hz. Suitable for altitudes below 1,000 m.

2. Permissible ambient temperature for ventilation fan cabinets: 2–40℃.

3. Gas conveyed: Flammable, explosive, or dust-laden gases that are non-corrosive, non-adhesive, and harmless to humans.


Applicable Standards for Fan Cabinet Products

1. “Technical Specifications for General-Purpose Centrifugal Fans”                             JB/T10563-2006

2. “Fan Cabinet Standard”                                                             JB/T 8932-1999

3. “Technical Specifications for Fire Smoke Exhaust Fans”                                      JB/T10281 -2014

4. “Explosive Atmospheres”                                                            GB 3836-2010


Frequently Asked Questions

DBF Fan Box

Please provide the model, airflow, total/static pressure, installation orientation, air inlet and outlet configuration, material, insulation, motor voltage/frequency, control method, filter module, smoke control and fire protection requirements, quantity, and packaging requirements. Performance, dimensions, and certification information are subject to the confirmed product and order documents.

haitong@haitonghvac.com