HTF Fire Exhaust Fan

The HTF Fire Exhaust Fan represents a critical advancement in building fire safety and ventilation technology. Recognized as a national "Xinghuo" project product, this fan has been developed through optimized design to deliver exceptional performance in both everyday ventilation and emergency fire situations. But what exactly makes this fan different from a standard ventilation fan? Let us walk through it.

The HTF Fire Exhaust Fan is fundamentally an axial flow fan—air moves parallel to the fan shaft—but it is built to withstand conditions that would destroy an ordinary fan. The secret lies in its high-temperature resistant motor and dedicated motor cooling system. The motor is fully enclosed and equipped with a specialized cooling system that prevents hot smoke and gases from coming into direct contact with the motor windings, protecting the motor from thermal damage even during extended fire conditions.

This fan has been rigorously tested and certified. It complies with GA211-2009 "Fire Smoke Exhaust Fan High Temperature Resistance Test Method" and has passed the CCCF mandatory certification from the公安部 Fire Product Qualification Assessment Center. The fan can operate continuously for over 60 minutes at 280°C—more than the 30-minute requirement in many building codes—and can run for 20 hours at 100°C without damage. Some configurations are rated for even higher temperatures, with certain models capable of running at 300°C to 400°C for extended periods.

One of the most practical features of the HTF Fire Exhaust Fan is its dual-purpose capability. When equipped with a dual-speed motor, the fan operates at low speed for daily ventilation—supply air, exhaust air, and air circulation for occupant comfort. When a fire is detected, the fan automatically switches to high speed through the building's electric control system, rapidly removing smoke and hot gases from escape routes. This "one fan, two jobs" approach saves equipment costs, installation space, and simplifies system design.

The fan's flat performance curve is another engineering advantage. Unlike many fans that only perform well at a narrow set of operating conditions, the HTF Fire Exhaust Fan maintains efficient operation across a broad range of airflow and pressure conditions. This means consistent performance whether the fan is running at low speed for daily ventilation or high speed for smoke exhaust.

The HTF Fire Exhaust Fan is available in multiple configurations to suit different applications. HTF-I is a single-speed axial flow model for general ventilation and smoke exhaust. HTF-II features a dual-speed motor for ventilation-plus-smoke-exhaust applications. HTF-III and HTF-IV use a mixed-flow impeller design for medium-pressure applications. For outdoor installations, HTF-W roof-mounted models are available with flame-retardant fiberglass or steel hoods. For explosive environments, EXdIIBT4 explosion-proof configurations are available.

The fan's compact design takes up significantly less space than a centrifugal fan with comparable performance, making it ideal for mechanical rooms where every square meter counts. The fan can be installed horizontally, vertically, or suspended from the ceiling, and it can be directly connected to ductwork.

Certified Fire Smoke Exhaust
 – The HTF Fire Exhaust Fan is CCCF-certified for fire protection applications. It has passed the GA211-2009 high-temperature test and can operate continuously for over 60 minutes at 280°C and for 20 hours at 100°C without damage.

Dual-Purpose Design
 – With a dual-speed motor, this fan serves two functions in one unit. Low-speed operation handles daily ventilation—supply air, exhaust air, and air circulation. High-speed operation provides fire smoke exhaust capability. This eliminates the need for separate ventilation and smoke exhaust fans.

High Efficiency
 – The high-efficiency axial impeller delivers large airflow with reduced energy consumption. The fan's flat performance curve ensures efficient operation across a broad range of conditions.

High-Temperature Resistant Motor
 – The motor features a dedicated cooling system that prevents direct contact between the motor and hot smoke or gases. This protects the motor windings from thermal damage during extended fire conditions.

Stable Operation with Low Noise
 – The dynamically balanced impeller ensures smooth operation with minimal vibration. Each impeller undergoes static and dynamic balancing to achieve a balance grade of G2.5 or better (ISO1940 standard). Noise levels are kept low, making the fan suitable for noise-sensitive environments.

Robust Construction
 – The heavy-duty steel housing provides excellent durability and corrosion resistance. The wheel hub is hydraulically stretch-formed from Q235 steel, and the blades are stamped and hydraulically formed. The outer shell flange is formed through spin-flanging in one operation, ensuring rigidity and a clean appearance.

Flexible Installation
 – The compact structure supports horizontal, vertical, and ceiling-mounted installations. The fan can be directly connected to ductwork, saving floor space.

Easy Maintenance
 – The compact structure allows convenient installation and routine maintenance. The external motor configuration (where applicable) simplifies inspection and servicing.

Customization Available
 – Airflow, pressure, voltage, dimensions, and installation methods can be customized. The fan is available in single-speed, dual-speed, and VFD configurations. Optional accessories include silencers of various lengths for noise-sensitive applications. Explosion-proof configurations (EXdIIBT4) are available for flammable or explosive environments.

Commercial Buildings

The HTF Fire Exhaust Fan is widely used in shopping malls, office buildings, hotels, and commercial complexes. Its dual-purpose design makes it particularly valuable for these settings—it handles daily HVAC ventilation quietly and efficiently, while providing certified fire smoke exhaust capability in case of emergency. The low noise levels make it suitable for guest rooms, conference areas, and retail spaces.

Underground Facilities

Parking garages, civil defense projects, and underground passages benefit from the HTF Fire Exhaust Fan's compact design and fire-safe operation. Parking garages, in particular, require both continuous ventilation and fire smoke exhaust capability—exactly what this dual-purpose fan delivers. The fan's compact size and flexible installation options make it ideal for confined underground spaces.

Industrial Facilities

In factories, warehouses, workshops, and logistics centers, the HTF Fire Exhaust Fan provides robust ventilation for heat removal, fume extraction, and general air circulation. Its high-temperature endurance and durable construction make it suitable for demanding industrial environments where fire safety is a concern.

Public Buildings

Hospitals, schools, airports, subway stations, stadiums, and smoke exhaust systems rely on the HTF Fire Exhaust Fan for consistent, quiet ventilation and certified fire protection. The dual-speed operation allows these facilities to maintain comfortable indoor air quality during normal operation while ensuring smoke exhaust capability during emergencies. The fan's low noise levels are particularly valued in healthcare and educational environments.

High-Rise Buildings

For high-rise buildings, the HTF Fire Exhaust Fan is an ideal choice for stairwell pressurization, corridor smoke exhaust, and general building ventilation. Its certified high-temperature operation ensures compliance with fire safety codes for tall buildings.

Tunnels and Subways

The HTF Fire Exhaust Fan is also used in tunnels and subway systems for smoke extraction and ventilation. The fan's large airflow capacity and high-temperature endurance make it suitable for these critical infrastructure applications.

The HTF Fire Exhaust Fan is designed for smoke extraction during fire emergencies and daily ventilation in HVAC systems. It improves indoor air circulation and enhances fire safety performance in commercial and industrial buildings.

The fan's primary functions include:

• Fire Smoke Exhaust (High Speed) – Rapidly removing smoke and hot gases from escape routes during a fire emergency, operating continuously for over 60 minutes at 280°C to ensure safe evacuation

• Daily Ventilation (Low Speed) – Delivering fresh air into occupied spaces, removing stale air and contaminants, and maintaining comfortable indoor air quality during normal building operation

• Dual-Purpose Operation – Serving both everyday ventilation and emergency smoke exhaust needs in a single unit, eliminating the need for separate fans

• HVAC Integration – Functioning as a key component in central air conditioning systems, air handling units, and other HVAC equipment

• Pipeline Pressurization – Boosting air pressure in ducted systems to overcome resistance in high-rise buildings

By combining high-efficiency axial impeller design with a high-temperature resistant motor and dedicated cooling system, the HTF Fire Exhaust Fan ensures effective ventilation with certified fire safety performance. The fan's broad performance range means it can handle both low-resistance and high-resistance duct systems, making it a versatile solution for diverse ventilation and fire protection requirements.

Q: What is the HTF Fire Exhaust Fan mainly used for?

A: It is designed for smoke extraction systems and daily building ventilation.

Q: Can the fan be customized?

A: Yes. Airflow, pressure, dimensions, and motor configurations can all be customized.

Q: Is it suitable for high-temperature operation?

A: Yes. High-temperature resistant motor options are available according to project requirements.

Q: Where is this fan commonly installed?

A: It is widely used in parking garages, shopping malls, hospitals, factories, airports, and public buildings.

Q: What is the delivery time?

A: Standard products are generally delivered within 15–25 days, depending on the order quantity.

Q: Do you provide technical support?

A: Yes. Our engineering team provides product selection, installation guidance, and after-sales technical support.

Looking for a reliable smoke exhaust solution? Contact Jinan Hongpeng Ventilation Equipment Co., Ltd. today for professional consultation and competitive quotations.