Y10-21 SERIES · INDUSTRIAL BOILER INDUCED DRAFT
Y10-21 Industrial Boiler Induced Draft Fan
Y10-21 is a single-inlet centrifugal induced draft fan for industrial boiler flue-gas extraction. The product manual provides No.8 and No.9 reference configurations at 1450 rpm, with C-type belt drive and D-type coupling drive arrangements.
4,215–16,252 m³/h
2,303–3,312 Pa
7.5–22 kW
≤250°C
AIRFLOW
4,215–16,252 m³/h
TOTAL PRESSURE
2,303–3,312 Pa
MOTOR POWER
7.5–22 kW
SPEED
1450 rpm
DRIVE
C / D
Technical Index
Manual Basis
No.8 / No.9
1450 rpm
C / D Drive
≤250°C
No.8 / No.9
1450 rpm
C / D Drive
≤250°C
01 / Engineering Overview
Industrial Boiler Flue-Gas Extraction
Y10-21 is a single-inlet centrifugal induced draft fan used in industrial boiler flue-gas systems. It works on the exhaust side of the boiler system and is selected to overcome resistance from the furnace, heat-transfer surfaces, dust-removal equipment, flue duct and discharge route.
The product manual provides No.8 and No.9 reference configurations at 1450 rpm. Final fan selection must still be based on the actual operating airflow, pressure, temperature and system resistance.
Product Role
Y10-21 belongs to the boiler induced-draft route and should not be selected only from boiler tonnage or motor power.
02 / Boiler Reference Duty
No.8 and No.9 Reference Configurations
No.8
2 t/h Reference
4,215–11,115 m³/h
2,303–2,509 Pa
No.9
4 t/h Reference
6,000–16,252 m³/h
3,038–3,312 Pa
Manual reference only: 2 t/h and 4 t/h are reference boiler duties in the product manual. Final selection must use the real operating point.
03 / Drive Arrangement
C-Type Belt Drive and D-Type Coupling Drive
C TYPE
V-Belt Drive
Power is transmitted through V-belts and pulleys. The motor is separated from the fan shaft and the arrangement provides practical access for belt and motor maintenance.
D TYPE
Coupling Drive
The motor and fan shaft are connected through a coupling for direct mechanical transmission.
04 / Manual Structure
Main Structural Features from the Product Manual
Impeller Material
16Mn steel construction is specified in the product manual.
Impeller Blades
24 blades in total: 12 long blades and 12 short blades.
Blade Direction
Forward-curved blade arrangement according to the manual description.
Bearing Housing
Water-cooled bearing housing is used to reduce thermal load in hot flue-gas service.
05 / Product Manual Performance
Y10-21 No.8 Performance
Reference speed: 1450 rpm.
POINT
AIRFLOW
PRESSURE
SHAFT POWER
MOTOR
1
4,215
2,303
3.83 kW
7.5 kW
2
5,400
2,391
4.75 kW
7.5 kW
3
6,736
2,460
5.85 kW
7.5 kW
4
7,536
2,489
6.53 kW
7.5 kW
5
8,148
2,499
7.22 kW
7.5 kW
6
9,598
2,509
8.81 kW
11 kW
7
10,281
2,499
9.65 kW
11 kW
8
11,115
2,509
10.76 kW
11 kW
Y10-21 No.9 Performance
Reference speed: 1450 rpm.
POINT
AIRFLOW
PRESSURE
MOTOR
1
6,000
3,038
18.5 kW
2
7,775
3,165
18.5 kW
3
9,590
3,254
18.5 kW
4
10,730
3,283
18.5 kW
5
11,600
3,303
18.5 kW
6
13,665
3,312
18.5 kW
7
14,642
3,303
18.5 kW
8
16,252
3,224
22 kW
Performance data source: values above follow the supplied Y10-21 product manual. Final fan selection must be checked against the actual project duty.
06 / Flue-Gas Condition
Temperature and Dust Conditions
Maximum Medium Temperature
The product manual specifies that the conveyed medium temperature should not exceed 250°C.
Dust Removal Requirement
The manual requires upstream dust-removal equipment with efficiency not lower than 85%.
Actual flue-gas temperature must still be provided during selection because gas density changes with temperature and affects fan pressure and absorbed power.
07 / Engineering Drawing
Y10-21 No.9D Installation and Overall Dimensions
The drawing below is based on the supplied product manual and includes the No.9D installation interface, overall dimensions and outlet orientation references.
Engineering note: use the approved project GA drawing for final foundation construction, duct fabrication and installation. The drawing shown here is a manual reference drawing.
08 / Outlet Orientation
Available Discharge Directions
0°
45°
90°
135°
180°
225°
Confirm rotation and discharge angle before manufacturing because outlet direction affects the foundation, duct connection and maintenance space.
09 / Selection Information
What to Send for Y10-21 Selection
01 / Airflow
Required operating airflow in m³/h.
02 / Pressure
Required total or static pressure and measurement basis.
03 / Temperature
Normal and maximum flue-gas temperature.
04 / Dust Condition
Dust-removal equipment, efficiency and expected dust loading.
05 / Drive
C-type belt drive or D-type coupling drive.
06 / Outlet
Required rotation and discharge angle.
07 / Electrical
Voltage, frequency, phase and motor requirements.
10 / Related Engineering Pages
Continue the Boiler Induced Draft Selection Path
11 / Technical FAQ
Y10-21 Boiler Induced Draft Fan Questions
What fan sizes are shown in the product manual?
The supplied Y10-21 manual provides No.8 and No.9 reference configurations.
What is the reference airflow range?
The manual performance data covers approximately 4,215 to 16,252 m³/h.
What pressure range is shown?
The supplied manual covers approximately 2,303 to 3,312 Pa total pressure.
What is the maximum medium temperature?
The product manual specifies that the conveyed medium temperature should not exceed 250°C.
Is upstream dust removal required?
Yes. The manual requires upstream dust-removal efficiency of at least 85%.
What is the difference between C and D drive?
C-type uses V-belt transmission, while D-type uses coupling transmission between the fan and motor shafts.
Can the outlet direction be specified?
Yes. The manual shows 0°, 45°, 90°, 135°, 180° and 225° discharge directions.
Related Boiler Fan Pages
Y10-21 in the Boiler Induced Draft Cluster
PRODUCT FAMILY
Boiler Induced Draft Fans
Compare Y4-68, Y6-30, Y5-47, Y5-48, Y10-21 and other boiler ID fan directions.
View Product Family →APPLICATION
Boiler Induced Draft System
Review the boiler, dust collector, duct and chimney resistance as one complete flue-gas system.
View System Guide →RELATED PRODUCT
Y6-30 Boiler ID Fan
Compact induced-draft direction for smaller industrial boiler systems.
View Y6-30 →HIGHER RESISTANCE
Y8-39 / Y9-38
Review when the exhaust route requires a higher-resistance boiler induced-draft direction.
View Y8-39 / Y9-38 →Y10-21 BOILER ID FAN SELECTION
Send the Actual Boiler and Flue-Gas Duty
Airflow · Pressure · Gas Temperature · Dust Condition · Drive Arrangement · Outlet Angle · Voltage · Frequency · Quantity
Manager Zhao
SHANDONG QIYUE FAN CO., LTD.
Industrial fan selection and export project support
Tel / WeChat / WhatsApp: +86 15653305981
Email: sales@qiyuefan.com
Factory: Dongchen Industrial Park, Zhoucun District, Zibo, Shandong, China
Email: sales@qiyuefan.com
Factory: Dongchen Industrial Park, Zhoucun District, Zibo, Shandong, China
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