Boiler Induced Draft Fans
Compare centrifugal ID fan models for boiler flue gas extraction, dust-removal resistance and stable negative-pressure operation. This page organizes QIYUE FAN product families by boiler scale, pressure demand and working condition.
Choose the Product Family Before Confirming the Exact Model
A boiler induced draft fan is selected from the complete exhaust duty-not from the model name or motor power alone. Use the cards below to identify a preliminary product direction, then confirm airflow, total pressure, gas temperature, dust condition, system resistance and installation arrangement.
Boiler and Fuel
Confirm boiler capacity, fuel type, operating load and combustion process.
Airflow and Pressure
Use the design airflow and total resistance at the required operating point.
Flue Gas Condition
Review continuous temperature, peak temperature, dust, moisture and corrosion risk.
Site Arrangement
Confirm drive type, rotation, outlet angle, foundation and duct connection.
Boiler Induced Draft Fan Product Series
Use these four product entries to identify the initial boiler ID fan direction before confirming the operating point.
Y6-30 Boiler Induced Draft Fan
A compact induced draft direction for small and medium industrial boilers, exhaust after dust removal and replacement projects.
Reference: 655–17,262 m³/h · 727–3,226 Pa · 0.75–22 kW.
Y5-47 Boiler Induced Draft Fan
For regular industrial boiler flue gas exhaust and negative-pressure support after the dust-removal section.
Reference: 1–20 t/h boiler duty · up to 250°C under confirmed inlet conditions.
Y5-48 Boiler Induced Draft Fan
For boiler exhaust routes where the fan must overcome resistance from smoke-removal and dust-collection equipment.
Models: No.4C / 5C / 6.3C / 8C / 10C / 12.5C.
Y8-39 / Y9-38 Boiler ID Fan
For boiler, kiln and furnace exhaust routes with higher resistance, longer ducting or more demanding hot-gas conditions.
Reference: 0.5–35 t boiler applications · up to 250°C standard direction.
Additional ID Fan Directions for Wider Boiler Duties
These series extend the selection range for medium and large boiler systems. Confirm the induced-draft configuration before quotation.
G/Y4-73 Boiler Centrifugal Fan
Choose the Y4-73 direction for flue gas exhaust. G4-73 is the clean-air-side configuration.
Boiler range: 2–670 t/h, subject to the actual operating point.
GY5-51 Boiler Draft Fan
A combined forced-draft and induced-draft direction for steam boilers and higher-pressure fluidized-bed boiler duties.
Reference: 2–670 t/h · operating temperature direction up to 250°C.
GY6-41 Industrial Boiler Fan
For 0.5–10 t/h industrial boiler rooms. Select the Y6-41 direction for induced draft and flue gas exhaust.
Suitable for small and medium boiler-room air-supply and exhaust matching.
GY6-51 Large-Capacity Draft Fan
For large steam boiler and fluidized-bed boiler draft systems requiring a wide airflow and pressure envelope.
Reference: 11,000–667,000 m³/h · 1,859–10,980 Pa.
Which Boiler ID Fan Series Should Be Reviewed First?
The table is a product-navigation tool, not a substitute for a fan curve or final technical selection.
| Product Series | Preliminary Position | Typical Review Focus | Important Confirmation |
|---|---|---|---|
| Y6-30 | Compact boiler ID fan | Small and medium boiler exhaust | C/D drive, airflow, pressure and layout |
| Y5-47 | Standard industrial boiler duty | Regular flue gas extraction after dust removal | Temperature, ash and collector resistance |
| Y5-48 | Smoke and dust treatment route | Dust collector and long exhaust route | Loaded resistance and duct losses |
| Y8-39 / Y9-38 | Higher-resistance exhaust | Boiler, furnace or kiln hot-gas route | Temperature-oriented structure and material |
| Y4-73 / GY Series | Wider boiler scale and duty envelope | Medium to large boiler and fluidized-bed systems | Confirm induced-draft configuration, drive and motor |
Select from the Complete Exhaust Route
For a new system, the fan duty should include the resistance of the boiler body, heat-recovery section, dust collector, scrubber, dampers, elbows, ducting and chimney route.
● Boiler capacity and fuel
● Design flue gas volume
● Required static or total pressure
● Normal and maximum temperature
● Dust collector and gas-treatment equipment
● Duct layout, chimney and site altitude
Match the Existing Interface and Correct the Real Problem
For an existing boiler ID fan replacement, operating data and connection dimensions are as important as the original model number.
● Fan and motor nameplate photos
● Existing airflow, pressure, speed and power
● Inlet, outlet and foundation dimensions
● Rotation and discharge angle
● Current problem: low draft, overload, wear or vibration
● Site photos, drawings and available installation space
Configuration Must Follow the Flue Gas Condition
Drive Arrangement
C-type, D-type or another supported transmission arrangement should be reviewed according to model size, speed, temperature, motor layout and maintenance access.
Material and Wear
Dust concentration, ash hardness, moisture and corrosive components affect impeller material, casing treatment, wear protection and service-life expectations.
Temperature Structure
Continuous and peak temperature should be stated separately. Bearing isolation, shaft arrangement, cooling and motor position depend on the verified temperature duty.
Rotation and Outlet Angle
Left-hand or right-hand rotation and the discharge angle must match the actual duct direction. Confirm the viewing side before production.
Motor and Control
Provide voltage, frequency, phase, enclosure, insulation and control method. Damper control and variable-speed control should be reviewed against the operating range.
Connection and Foundation
For replacement projects, send inlet, outlet, base and shaft-center dimensions. A drawing or measured sketch helps reduce interface risk.
Boiler Induced Draft Fan Questions
What is the main function of a boiler induced draft fan?
It pulls flue gas through the boiler exhaust route and helps maintain the required furnace negative pressure while overcoming the resistance of connected equipment and ducting.
Can the model be selected only from boiler capacity?
No. Boiler capacity provides an initial direction, but the final model must use the required airflow, total pressure, gas temperature, density, dust condition, treatment equipment and installation arrangement.
What resistance should be included in ID fan pressure?
Include the pressure losses of the boiler body, heat-recovery section, dust collector, scrubber, dampers, elbows, transitions, duct friction, chimney and discharge route.
How should a replacement boiler ID fan be specified?
Send nameplate photos, current operating data, connection dimensions, foundation dimensions, rotation, outlet direction, motor standard, site photos and the problem that needs to be corrected.
What is the difference between this product page and the boiler ID fan system page?
This page compares QIYUE FAN product families and direct model entries. The boiler induced draft system page explains fan position, system resistance, new-project data and replacement-project selection logic in greater detail.
Related Boiler Fan Pages
Move from the induced-draft product family to the corresponding system guide, forced-draft family, high-temperature family or complete boiler fan selection guide.
Boiler Induced Draft System
Review flue-gas route, dust-collector resistance, chimney discharge and negative-pressure requirements.
View ID System →Boiler Forced Draft Fans
Compare combustion-air supply, burner pressure and air-side fan directions before the furnace.
View FD Fans →High-Temperature Industrial Fans
Review furnace, kiln, boiler and thermal-process hot-gas fan directions.
View High-Temp Fans →Boiler Fan Selection Guide
Compare ID, FD and high-temperature fan duties from the complete boiler route.
Read Selection Guide →Send Your Boiler ID Fan Operating Point
Provide boiler capacity, fuel, airflow, total pressure, normal and maximum flue gas temperature, dust condition, treatment equipment, duct layout, power supply, quantity and destination. For replacement projects, attach the existing fan nameplate and interface drawing.
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