The Industrial Boiler Forced Induced Draft Fan is a centrifugal industrial fan designed for boiler ventilation, combustion air supply, and flue gas extraction applications.
Depending on the boiler system configuration, the GY6-41 can be engineered as a Forced Draft Fan (FD Fan) for combustion air supply or an Induced Draft Fan (ID Fan) for boiler flue gas extraction.
EMS provides customized GY6-41 boiler fans based on boiler capacity, fuel type, airflow or flue gas volume, system resistance, gas temperature, dust concentration, and downstream environmental protection equipment.
The GY6-41 is suitable for:
Industrial Boiler Ventilation
Boiler Forced Draft Systems
Boiler Induced Draft Systems
Steam Boilers
Hot Water Boilers
Industrial Heating Systems
Thermal Energy Systems
Boiler Combustion Air Supply
Boiler Flue Gas Exhaust
Dust Collection Systems
Flue Gas Treatment Systems
Biomass Boiler Systems
Waste Heat Boiler Systems
CHP Systems
| Parameter | Typical Range |
|---|---|
| Product Type | Industrial Boiler Draft Fan |
| Fan Type | Centrifugal Fan |
| Application | Forced Draft / Induced Draft |
| Airflow | 3,000–150,000 m³/h |
| Total Pressure | 1,000–6,000 Pa |
| Motor Power | 5.5–315 kW |
| Fan Speed | 730–2,900 rpm |
| Gas Temperature | Typically up to 250°C |
| Drive Type | Direct / Belt / Coupling |
| Impeller Type | Centrifugal |
| Casing Material | Carbon Steel / Customized |
| Impeller Material | Carbon Steel / Wear-Resistant Steel |
| Motor | Industrial Motor |
| Installation | Horizontal / Customized |
| Duty | Continuous Operation |
| Application | Boiler Air Supply / Flue Gas Exhaust |
The above values are typical engineering reference ranges and are not fixed specifications for every GY6-41 configuration. Final airflow, pressure, speed, motor power, temperature rating, and materials should be selected according to the actual boiler system.
The GY6-41 uses a centrifugal impeller to accelerate and transport air or flue gas. The rotating impeller converts mechanical energy into airflow and pressure suitable for the boiler ventilation system.
For combustion air supply:
Ambient Air → GY6-41 FD Fan → Air Duct → Boiler Furnace → Combustion
The fan supplies combustion air while overcoming resistance from air ducts, dampers, air preheaters, and other upstream equipment.
For flue gas extraction:
Boiler → Dust Collector → Flue Gas Treatment → GY6-41 ID Fan → Chimney
The fan extracts boiler flue gas and overcomes resistance from dust collectors, desulfurization systems, denitrification systems, ducts, dampers, and chimneys.
The GY6-41 platform can be configured for either forced draft or induced draft duties according to the actual boiler design.
The centrifugal configuration provides the pressure capability required for boiler air supply and flue gas systems with significant system resistance.
Direct drive, belt drive, or coupling drive can be selected according to airflow, speed, motor power, and installation requirements.
For dusty flue gas applications, wear-resistant impellers and protective configurations can be provided according to dust concentration and particle characteristics.
For high-temperature air or flue gas, appropriate bearings, cooling arrangements, sealing systems, and heat-resistant materials can be selected.
The fan can be equipped with industrial-grade motors, bearings, shafts, and drive components for continuous boiler operation.
| Item | Forced Draft Fan | Induced Draft Fan |
|---|---|---|
| Main Function | Supply Combustion Air | Extract Flue Gas |
| Installation Position | Upstream of Boiler | Downstream of Boiler |
| Medium | Fresh / Combustion Air | Boiler Flue Gas |
| Main Purpose | Support Combustion | Maintain Furnace Draft |
| Dust Load | Usually Low | Usually Higher |
| Temperature | Normally Lower | Normally Higher |
| Typical Equipment | Air Duct / Air Preheater | Dust Collector / FGD / Chimney |
Whether a specific GY6-41 configuration is suitable for FD or ID duty should be confirmed based on the actual operating medium, temperature, pressure, dust conditions, and material requirements.
Recommended selection information includes:
Boiler Capacity
Fuel Type
Required Airflow / Flue Gas Volume
Required Pressure
Gas Temperature
Dust Concentration
Gas Composition
Air Preheater Resistance
Dust Collector Resistance
FGD / DeNOx Resistance
Duct Length
Duct Diameter
Altitude
Motor Voltage
Frequency
Operating Hours
Installation Space
Material Requirements
EMS provides:
Boiler FD Fan Selection
Boiler ID Fan Selection
Airflow and Pressure Calculation
System Resistance Calculation
Motor Selection
Impeller Design
Wear-Resistant Configuration
High-Temperature Configuration
Drive System Selection
Bearing Selection
Dust Collector Matching
Flue Gas Treatment System Matching
Electrical Control Configuration
VFD / Soft Starter Options
Installation Guidance
Technical Documentation
Export Packaging