The High Temperature Smoke Exhaust Fan is designed for emergency smoke extraction and heat evacuation where the fan must maintain operation at elevated temperatures. It combines a heat-resistant fan assembly, high-temperature motor arrangement and heavy-duty steel casing for specified smoke-control duties.
Key Specifications
|
Parameter |
Specification |
|
Operating Temperature |
250°C / 300°C / 400°C |
|
Emergency Duration |
Up to 120 min |
|
Airflow |
5,000–120,000 m³/h |
|
Static Pressure |
Up to 2,500 Pa |
|
Impeller Diameter |
400–2,000 mm |
|
Motor Insulation |
Class H |
|
Motor Protection |
IP55 / IP56 |
|
Casing Material |
Q235B / SS304 / SS316 |
|
Drive |
Direct Drive / Belt Drive |
|
Smoke Control Standard |
EN 12101-3 |
Fan Construction
Casing: Heavy-gauge carbon steel or stainless-steel housing with reinforced flanges and external stiffening rings for thermal expansion.
Impeller: Airfoil or backward-curved blades welded to a machined hub.
Drive: Direct-drive or belt-drive arrangements; belt-driven models place the motor outside the hot exhaust stream.
Motor: Class H motor configuration with thermal isolation or shielding where required.
High-Temperature Performance
Continuous Smoke Extraction
Class H insulation, motor thermal isolation and heat-resistant components support operation at the specified temperature for up to 120 minutes, maintaining smoke extraction during the emergency period.
Stable Airflow
Airfoil or backward-curved blades and a reinforced casing limit turbulence and thermal deformation, helping maintain the required airflow and static pressure.
Low Vibration
Each impeller is dynamically balanced to ISO 1940 Grade G2.5, reducing rotational imbalance and vibration during high-speed operation.
Dual-Duty Operation
The fan can provide normal ventilation at lower operating speed and switch to the specified emergency smoke-extraction condition after a fire-control signal, allowing one fan to serve both routine and emergency ventilation duties.
Applications
Underground Parking: Emergency smoke extraction from multi-level garages and enclosed vehicle areas.
Road & Railway Tunnels: Smoke extraction where large air volumes must be moved through long duct or tunnel systems.
Commercial Atriums: Zoned smoke control for large open-volume spaces such as malls and atriums.
Industrial Plants: Extraction of high-temperature smoke, process fumes and emergency heat loads.
High-Bay Buildings: Emergency smoke and heat extraction from large warehouses and distribution facilities.
Inspection & Testing
Impeller Balance: Every impeller is dynamically balanced on a Schenck horizontal balancing machine to ISO 1940 Grade G2.5 before assembly.
Weld Inspection: Critical casing welds undergo magnetic particle inspection (MPI) to identify surface cracks and discontinuities.
Performance Test: Fan aerodynamic performance is verified in an in-house AMCA-compliant test chamber against the specified airflow and static-pressure duty.
Thermal Endurance: High-temperature ratings are verified through third-party laboratory furnace testing for the specified temperature and operating duration.
Final Inspection: Casing dimensions, flange drilling, impeller rotation, motor arrangement and ordered accessories are checked against the approved GA drawing before shipment.
Supply Information
MOQ: 1 unit for standard models; bulk orders by project quantity.
Lead Time: 3–4 weeks for standard models; 5–7 weeks for engineered configurations.
Warranty: 12 months from commissioning or 18 months from shipment, whichever comes first.
Payment: 30% deposit, 70% balance before shipment.
Documents: GA drawing, performance curve, motor datasheet, O&M manual and applicable certificates.
Spare Parts: Bearings, belts and other model-matched replacement parts can be supplied.
Terms: Final MOQ, payment, warranty and delivery terms are confirmed in the quotation and sales contract.
RFQ
Choose the plan that suits you
Airflow
Required m³/h
Static Pressure
Required Pa
Temperature
250°C / 300°C / 400°C
Duration
Required operating time
Duct Size
Inlet and outlet dimensions
Installation
Horizontal / vertical / roof / wall
Power Supply
Voltage, frequency and phase
Quantity
Required units
FAQ
Q: Can this fan replace an existing smoke exhaust fan?
A: Yes. Replacement orders can be matched to the existing fan using its model number, nameplate data, dimensions and connection details.
Q: What is the difference between a smoke exhaust fan and a standard ventilation fan?
A: A smoke exhaust fan is specifically designed and rated for emergency operation at elevated temperatures, while a standard ventilation fan is not intended for fire-duty conditions.
Q: Can the fan work with a fire alarm system?
A: Yes. The fan can receive a fire-control signal to initiate the emergency operating mode and can be integrated into the project's smoke-control sequence.
Q: Can the fan be connected to a BMS?
A: Yes. Control panels and monitoring interfaces can be configured for building management system integration where required.
Q: Should I choose direct drive or belt drive?
A: Direct drive provides a compact transmission arrangement, while belt drive allows the motor to be positioned outside the hot exhaust stream and provides greater installation flexibility.
Q: What documents are normally required for project approval?
A: Typical submittals include GA drawings, fan performance data, motor documentation, installation and maintenance manuals, inspection records and applicable certification documents.
Q: Can the fan be supplied for OEM or private-label projects?
A: Yes. Fan configuration, identification labels, documentation and project-specific accessories can be arranged for OEM orders.
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