• Durability: Vinylester resin, UV protection, extended service life.
• Customizable: Computer strain analysis, G2.5 balance, low vibration risk.
• Easy Maintenance: Oil bath bearings, heat/corrosion resistant, cost-effective.
• Professional Team: Expert wind turbine guidance.
• High aerodynamic efficiency, low noise, corrosion resistance.
• Medium temp range: -20℃ to 80℃, ≤ humidity, ≤ 100mg/m3 dust content.
• Durable Fiberglass Build: Ensures long-lasting performance.
• Ethylene-based fiberglass blades optimize airflow.

Application

The YX9-35 Series Induced Draft Fan is engineered to match boilers with capacities from 1t/h to 4t/h, with models like 5C, 6.3C, and 8C/D perfectly suited for these applications. It addresses common issues like noise and insufficient airflow, operating with a noise level of only 76dB(A), well below the environmental standard of 90dB. This makes the fan an excellent solution for industries that demand both efficiency and reduced sound levels.
 

Form

• 1. The fan is a single-suction design available in sizes such as No.4.5C, No.6.3C, and No.8C/D, intended for use with 1t/h to 4t/h boilers.
• 2. It can be configured in both right-hand and left-hand models. When looking from the motor side, a clockwise impeller rotation indicates a right-hand configuration ("right"), while counterclockwise rotation indicates a left-hand configuration ("left").
• 3. The outlet angle of the fan casing is customizable, with options of 0°, 90°, and 180° for both right- and left-handed configurations.

Structural Characteristics

The YX9-35 Centrifugal Induced Draft Fan is composed of the following key components: casing, impeller, air inlet, front cover, and transmission system.

1. 1. Impeller: Equipped with 16 forward-curved blades made from Q345 (16Mn) steel, the impeller ensures efficient airflow and is dynamically balanced to provide smooth operation with high durability.
2. 2. Casing: The casing is a welded spiral structure made from standard steel plates, designed for optimal performance.
3. 3. Air Inlet: The air inlet has a streamlined, converging design, securely attached to the casing along with the front cover plate using bolts.
4. 4. Regulating Door: This door, made of standard steel, allows precise control over airflow, adjusting between 90° (fully closed) and 0° (fully open).
5. 5. Support Structure: The No.6.3C fan comes with a sturdy steel bracket to enhance structural stability.
6. 6. Transmission System: The transmission includes the main shaft and bearing box. The shaft is made from high-quality steel. Bearings for smaller fans (below No.6.3C) are cooled using fan blades, while larger models use copper cooling pipes. The bearing box also includes a thermometer and oil level indicator for optimal operation.

 

Performance and Selection

• 1. Customers can choose the appropriate fan model and motor based on the performance data, which includes specifications for flow rate and total pressure.
• 2. The factory testing guarantees that the fan’s total pressure does not deviate more than ±5% from the required value.
• 3. Performance data in the table assumes a flue gas temperature of 200°C, atmospheric pressure of 101325Pa, and gas density of 0.745Kg/m³. If operating conditions differ from these assumptions, performance calculations should be adjusted accordingly using the relevant formulas.

The YX9-35 Series Industrial Centrifugal Induced Draft Fan offers dependable performance, low noise, and long-term durability, making it an ideal choice for boiler systems that require consistent airflow control and stable combustion.

YX9-35 Induced draft fan performance and options
No.	Rotating Rate (r/min)	Full Pressure /Pa	Air Flow /(m³/h)	Maching Boiler Capacity /(t/h)	Motor
					Model	Power /kW
5C	2240	2314	5894	1	Y132S1-2	5.5
		2265	6610		Y132S2-2	7.5
		2226	7902
		2108	8884		Y160M1-2	11
6.3C	1800	2452	9474	2	Y160M-4	11
		2393	10626
		2206	14281		Y160L-4	15
		2128	15840
8C	1600	3199	17245	4	Y180L-4	22
		3040	19342
		2961	23116		Y225S-4	37
		2814	25992
8D	1450	2501	17528		Y180M-4	18.5
		2432	20949		Y160L-4	30
		2304	23556
		2226	26128
Note: The medium temperature is 170°C.

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