The GY4-73 Boiler Induced Draft Fan is a centrifugal fan designed for air supply and flue gas extraction in industrial boiler systems. It uses a centrifugal impeller to generate airflow and pressure, supporting stable ventilation and exhaust performance under different operating conditions.
The fan mainly consists of an impeller, volute casing, inlet, drive assembly, and electric motor. Featuring a practical structure, stable operation, and convenient maintenance, it can be configured according to specific requirements for airflow, total pressure, motor power, materials, and installation.
Efficient Centrifugal Impeller
The backward-curved impeller design helps improve aerodynamic performance and provides the airflow and pressure required by boiler ventilation systems.
Robust Steel Construction
The welded steel volute casing provides reliable structural strength. Material selection and wear-resistant construction can be customized according to operating conditions.
Stable and Reliable Operation
Static and dynamic balancing of the impeller helps reduce vibration and improve operational stability.
Flexible Airflow Regulation
An inlet damper can be configured to adjust airflow according to boiler load and system operating requirements.
Flexible Configuration Options
The fan can be configured with different sizes, motor specifications, rotation directions, outlet orientations, materials, and installation arrangements to meet project requirements.
1. Industrial Boiler Systems
Used for combustion air supply, furnace ventilation, and flue gas extraction to support stable and efficient boiler operation.
2. Thermal Power Plants
Applied in boiler ventilation and induced draft systems to provide reliable airflow for combustion processes and flue gas discharge.
3. Waste Incineration Plants
Suitable for ventilation, combustion air supply, and flue gas extraction in waste incineration systems, subject to specific operating conditions and fan configuration.
4. Cement and Building Materials Industry
Used in industrial kilns, combustion systems, and related processes for air supply and flue gas extraction.
5. Metallurgical and Industrial Furnaces
Applied in furnace ventilation, combustion air supply, and high-temperature gas handling under specified operating conditions.
| Model | Speed(r/min) | Motor power(kw) | Total pressure(pa) | Airflow(m³/h) |
| 4D | 2900 | 4-5.5 | 1882-2049 | 3242-5660 |
| 6.3D | 2900 | 5.5-55 | 1167-5080 | 6333-17391 |
| 10D | 1450 | 55-90 | 2922-3412 | 25330-53666 |
| 12.5D | 730-1450 | 22-250 | 1157-5344 | 24907-104816 |
| 16D | 730-960 | 55-250 | 1892-3844 | 52234-145533 |
Q1: What is the GY4-73 Boiler Fan used for?
The GY4-73 Boiler Fan is primarily used in industrial boiler systems for air supply, furnace ventilation, and flue gas extraction. Its specific application depends on the fan configuration and operating requirements.
Q2: What is the difference between G4-73 and Y4-73 fans?
The G4-73 fan is generally used for forced-draft applications, supplying air to the boiler combustion system. The Y4-73 fan is designed for induced-draft applications, extracting flue gas from the boiler system.
Q3: Can this fan operate continuously?
Yes. The fan can be designed for continuous industrial operation when properly selected, installed, and maintained according to the specified operating conditions.
Q4: What airflow capacity and pressure can the fan provide?
The airflow capacity and total pressure depend on the fan model, impeller size, rotational speed, and operating conditions. Please provide your required airflow and pressure for accurate model selection.
Q5: What is the maximum operating temperature?
For conventional G4-73 forced-draft fans, the maximum air temperature is generally 80°C. For Y4-73 induced-draft fans, the maximum flue gas temperature is generally 250°C. Special operating conditions may require customized configurations.
Q6: Can the fan handle dusty or corrosive gases?
The standard configuration is not suitable for all dusty or corrosive applications. Depending on the gas composition and operating conditions, wear-resistant materials, anti-corrosion coatings, or additional protective components may be required.
Q7: Can you customize the motor voltage and frequency?
Yes. Motor voltage, frequency, power, insulation class, and protection rating can be customized according to the electrical standards of the destination country and project requirements.
