The Industrial Smoke Exhaust Fan is a high-temperature centrifugal fan with an aerofoil impeller, steel casing and smoke-rated drive arrangement for industrial smoke and hot-gas extraction.
Key Specifications
|
Parameter |
Specification |
|
Airflow Capacity |
5,000–120,000 m³/h |
|
Static Pressure |
Up to 2,500 Pa |
|
Impeller Diameter |
400–2,000 mm |
|
Smoke Temperature Rating |
300°C / 60 min to 400°C / 120 min |
|
Motor Insulation |
Class H |
|
Motor Protection |
IP55–IP65 |
|
Power Supply |
380–480 V, 50/60 Hz, 3-Phase |
|
Casing Material |
Q235B / SS304 / SS316L / Galvanized Steel |
|
Drive |
Direct Drive / Belt Drive |
Industrial Exhaust Performance
Fast Smoke Removal
The aerofoil impeller uses streamlined blade profiles to reduce flow turbulence and pressure loss, allowing more air to pass through the fan at the required operating pressure and accelerating smoke extraction.
Stable Airflow
The centrifugal impeller develops the pressure needed to overcome duct, bend and damper resistance, helping maintain the required system airflow.
Continuous Operation
Direct-drive or belt-drive construction supports continuous-duty ventilation, allowing the fan to operate during routine ventilation as well as specified emergency duty.
Low Vibration
Each impeller is dynamically balanced to ISO 1940 Grade G2.5, reducing rotational vibration and helping maintain stable fan operation.
Operating Conditions
Hot Gas: High-temperature-rated components and motor arrangement for specified exhaust temperatures.
Moist Air: Galvanized steel or stainless-steel construction for humid environments.
Corrosive Gas: SS304 or SS316L casing for specified corrosive exhaust conditions.
Clean Smoke: Q235B carbon steel casing for standard industrial exhaust.
Dust-Laden Gas: Confirm particle concentration, temperature and gas composition before material and impeller selection.
Applications
Underground Parking: Smoke extraction from multi-level garages, enclosed ramps and vehicle circulation areas.
Factory Workshops: Exhaust welding fumes, process smoke and accumulated hot air from enclosed production areas.
Foundries: Remove furnace smoke and high-temperature gases from casting and metal-processing areas.
Tunnels: Ventilate highway, railway and utility tunnels and provide emergency smoke extraction.
High-Bay Warehouses: Extract smoke and heat from large enclosed storage areas during fire events.
Logistics Buildings: Support smoke-control systems in enclosed sorting, loading and distribution areas.
Process Plants: Handle specified hot or corrosive exhaust where the selected casing material and temperature rating match the process medium.
Installation & System Integration
Duct Interface: Confirm inlet/outlet diameter, flange dimensions and bolt-hole pattern before production.
Mounting: Confirm horizontal or vertical position, support arrangement, mounting points and maintenance clearance.
Discharge: Confirm outlet direction and orientation against the site duct route.
Drive Arrangement: Confirm motor position and direct-drive or belt-drive layout based on the installation space and service access.
Electrical Interface: Provide voltage, frequency, phase, motor power and starter/VFD requirements for connection.
Fire-Control Interface: Define the fan start signal and emergency operating sequence with the fire-alarm or smoke-control panel.
Custom Configuration
|
Requirement |
Example |
|
Corrosive Exhaust |
SS304 / SS316L casing |
|
Existing Ductwork |
Non-standard flange diameter and bolt-hole pattern |
|
Limited Space |
Custom discharge direction and mounting arrangement |
|
Motor Arrangement |
Customized belt-drive layout and motor position |
|
Project Inspection |
Third-party witness testing and additional inspection records |
|
Control Interface |
Factory-integrated control and monitoring components |
Documents & Supply
Technical Documents: GA drawing, overall dimensions, flange details, motor datasheet and performance curve.
Installation Documents: Installation instructions, wiring information and operation & maintenance manual.
Inspection Records: Factory test records, impeller balancing certificate and material certificates when specified.
Spare Parts: Bearings, belts and other replaceable parts matched to the supplied fan model.
Standard Lead Time: 3–4 weeks for standard configurations.
Engineered Lead Time: 5–7 weeks for special materials, custom flanges or additional inspection.
RFQ Data: Required airflow, static pressure, smoke temperature, F300/F400 duty, duct size, installation position and power supply.
FAQ
Q: How do I choose a smoke exhaust fan for a new project?
A: Start with the required duty point: system airflow and static pressure. Then match the fan to the required smoke-control classification, installation arrangement and power supply.
Q: Can one fan handle both normal ventilation and fire smoke extraction?
A: Yes. A dual-duty configuration can be specified so the fan operates for routine ventilation and switches to the required emergency smoke-exhaust mode.
Q: What information is needed to select the correct fan model?
A: Provide the design airflow, static pressure, smoke-control duty, duct connection, installation position and electrical supply. A system drawing or fan schedule is also useful for checking the selection.
Q: Should I select the fan based on airflow alone?
A: No. Airflow must be matched with the required static pressure. A fan delivering the correct airflow at insufficient pressure may not achieve the required system performance.
Q: What is the difference between direct-drive and belt-drive smoke exhaust fans?
A: Direct drive uses fewer transmission components and a more compact layout. Belt drive allows greater flexibility in motor positioning and maintenance access.
Q: Can the fan be selected for a replacement project?
A: Yes. For replacement, provide the existing fan model, nameplate data, duct dimensions and site installation photos or drawings to match the new fan with the existing system.
Q: Can the fan be supplied for overseas industrial projects?
A: Yes. The fan can be prepared with project technical documents, inspection records and model-matched spare-parts information for international procurement and installation.
Q: What should be checked before placing a bulk order?
A: Confirm the approved fan selection, GA drawing, motor specification, flange details, smoke-control duty and electrical requirements before production starts.
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