In modern industrial boiler systems, the boiler centrifugal fan plays a crucial role in ensuring efficient air supply and exhaust.
This fan model is widely recognized for its large air volume, stable pressure, high efficiency, and reliable performance, making it one of the most commonly used centrifugal fans in boiler and ventilation industries.
1. Overview of the YYBF Centrifugal Fan
The 4-73 series is a medium and low-pressure centrifugal fan specially designed for boiler air supply (forced draft) and exhaust (induced draft) systems.
It can convey clean air, hot air, or slightly dusty gases, with gas temperatures generally not exceeding 250°C for induced draft fans and 80°C for forced draft fans.
- Air Volume Range: 2,400 – 166,000 m³/h
- Total Pressure Range: 300 – 6,500 Pa
Such wide performance ranges ensure stable combustion efficiency and air balance for boilers of 1–35 tons per hour.
2. Key Advantages
High-Efficiency Backward-Curved Impeller
Each impeller is dynamically balanced for smooth operation and low vibration, offering excellent aerodynamic performance and energy efficiency.
Heat-Resistant and Anti-Corrosion Options
For induced draft applications, stainless steel or heat-resistant steel impellers can be used to handle high-temperature or corrosive gases.
Adjustable Inlet Design
The air inlet can be adjusted according to system air demand, ensuring better adaptability and performance control.
Multiple Drive Types
Available in direct drive, belt drive, and coupling drive configurations, suitable for various boiler room layouts.
Enhanced Sealing and Cooling System
Equipped with shaft seals and cooling devices to ensure stable bearing operation under high-temperature environments.
3. Typical Applications
Typical Applications
The YYBF centrifugal fan is widely used in:
- Industrial steam boilers, coal-fired boilers, and gas boilers
- Hot-air furnaces, drying kilns, and heat treatment systems
- Ventilation and exhaust systems in factories, metallurgy, and power plants
Whether for new boiler installations or upgraded boiler systems, the YYBF series provides a reliable, energy-saving, and low-noise air solution.
4. Why choose us
At Yueyu Machinery, we provide tailored design and selection for each boiler system, including:
- Matching forced/induced draft system design
- Options for carbon steel, stainless steel, or explosion-proof structures
- High-temperature insulation and anti-corrosion treatment
- Integration with variable frequency control systems and custom motor brands
Our engineering team ensures each fan achieves optimal airflow, efficiency, and durability under real-world operating conditions.
📞 Contact Yueyu Machinery
Phone: +86 13246303033
WhatsApp:+1 (408) 590 3985
Email: [email protected] ; [email protected]
Website: [www.yueyublower.com]
