FLOW02 · Ventilation & AC
Smoke Exhaust Fans
F300 and F400 rated fans for life-safety smoke management.
Manufacturer
Ventilux
Where it is used
- 01Stairwell pressurisation in high-rise towers
- 02Atrium and mall smoke clearance
- 03Car park impulse ventilation networks
- 04Tunnel and underpass emergency extract
- 05Data centre and generator hall smoke venting
- 06Metro and public transit smoke control
Read the product brief
Flow Dynamics supplies smoke exhaust fans across the UAE for car park ventilation, stairwell pressurisation and atrium smoke clearance. Smoke exhaust fans keep escape routes usable by extracting smoke from stairwells, corridors, atria, and car parks during a fire. UAE Civil Defence and GCC codes require these fans to be certified for continuous operation at elevated temperatures, typically F300 (300 °C for 2 hours) or F400 (400 °C for 2 hours) to EN 12101-3. Flow Dynamics supplies both axial jet fans for car park smoke ventilation and large centrifugal extract fans for stairwell pressurisation and atrium clearance.
How it works
Working principle
On a fire alarm, the building management system starts the smoke fans and opens the relevant dampers. A car park jet-fan network pushes smoke in a coordinated direction toward a large extract shaft, the jet fans themselves do not extract, they induce airflow. Stairwell pressurisation fans inject fresh air into the stairwell at a rate that keeps the core at positive pressure relative to the floors, so when a stairwell door opens smoke cannot travel in. Certified high-temperature fans use heat-resistant bearings, insulation, and wiring so the motor survives direct exposure to flue gases for the rated duration.
What the team needs to review
These are indicative ranges from the current product record. Exact specifications are confirmed per project during selection.
01Operating duty
Share the required airflow or capacity, operating condition and expected schedule.
02Site arrangement
Provide the available drawings, connection points, installation position and service clearances.
03Project requirements
Include the consultant specification, material, control and approval requirements that apply.
04Quantity and delivery
Provide the project location, quantity and required delivery date.
Technical specifications
These are indicative ranges from the current product record. Exact specifications are confirmed per project during selection.
| Temperature rating | F300 / F400 (EN 12101-3) |
|---|---|
| Duration at temperature | 120 minutes minimum |
| Airflow range | 5,000 – 200,000 m³/h |
| Fan types | Axial jet, axial, centrifugal |
| Certification | Civil Defence, CE, Eurovent |
| Monitoring | Integrates with fire alarm panel |
Plan your enquiry
Start with the project information available.
Share the application, duty or airflow figures, drawings and any consultant specification available. The team will confirm what is needed to complete selection.
Common questions
Common questions
01What does F300 or F400 actually certify?
That the fan keeps running at 300 °C or 400 °C respectively for a minimum of 120 minutes, tested to EN 12101-3, so escape routes stay tenable during evacuation. UAE Civil Defence requires this rating on smoke extract duty.
02Are your smoke fans Civil Defence compliant?
We supply fans certified to EN 12101-3 with the documentation UAE Civil Defence submittals require, and our engineers prepare the submittal pack against your project specification.
03Jet fans or ducted extract for my car park?
Send the required duty, site conditions, equipment schedule and any available drawings or consultant specification. We use these to prepare an equipment selection and the supporting technical documents.
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