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High Airflow 4-72A Centrifugal Fan from China Suppliers | Reliable Factory for Industrial Ventilation Solutions
Parameters
| Model | Speed (r/min) |
Power (kW-P) |
Traffic (m³/h) |
Total pressure (Pa) |
Voltage (V) |
Frequency (Hz) |
Horsepower (HP) |
|---|---|---|---|---|---|---|---|
| 2.5A | 2900 | 0.75-2 | 800-1650 | 790-485 | 220/380 | 50 | 1 |
| 2.8A | 2900 | 1.5-2 | 1131-2356 | 994-606 | 220/380 | 50 | 2 |
| 3.2A | 2900 | 2.2-2 | 1688-3517 | 1300-792 | 220/380 | 50 | 3 |
| 1450 | 1.1-4 | 844-1758 | 324-198 | 220/380 | 50 | 1.5 | |
| 3.6A | 2900 | 3-2 | 2664-5268 | 1578-989 | 220/380 | 50 | 4 |
| 1450 | 1.1-4 | 1332-2634 | 393-247 | 220/380 | 50 | 1.5 | |
| 4A | 2900 | 5.5-2 | 4012-7419 | 2014-1320 | 380 | 50 | 7.5 |
| 1450 | 1.1-4 | 2006-3709 | 501-329 | 220/380 | 50 | 1.5 | |
| 4.5A | 2900 | 7.5-2 | 5712-10562 | 2554-1673 | 380 | 50 | 10 |
| 1450 | 1.1-4 | 2856-5281 | 634-416 | 220/380 | 50 | 1.5 | |
| 5A | 2900 | 15-2 | 7728-15455 | 3187-2019 | 380 | 50 | 20.5 |
| 1450 | 2.2-4 | 3864-7728 | 790-502 | 220/380 | 50 | 3 | |
| 5.6A | 2900 | 22-2 | 10122-25736 | 4152-2330 | 380 | 50 | 30 |
| 1450 | 3-4 | 7062-9885 | 957-759 | 220/380 | 50 | 4 | |
| 6A | 1450 | 4-4 | 6677-13353 | 1139-724 | 380 | 50 | 5.5 |
| 6.3A | 1450 | 5.5-4 | 10110-15810 | 1247-968 | 380 | 50 | 7.5 |
| 7.1A | 1450 | 11-4 | 12676-20513 | 1572-1168 | 380 | 50 | 15 |
| 960 | 3-6 | 8392-13581 | 689-512 | 380 | 50 | 4 |
Frequently Asked Questions (FAQ)
What do the model numbers (e.g., 2.5A to 7.1A) indicate?
The model numbers represent the specific sizes and configurations of the fan series. Generally, larger numbers indicate larger impeller diameters, which correspond to higher capacity, traffic volume, and horsepower ratings.
How does the rotation speed (r/min) affect the fan's performance?
Higher speeds (such as 2900 r/min) yield significantly higher traffic (airflow) and total pressure, but also require more motor power. Lower speeds (such as 1450 r/min or 960 r/min) are more energy-efficient and run quieter, suitable for systems with lower pressure demands.
Can these models operate under different voltages?
Yes. Models specified with "220/380" in the voltage column can support both single-phase 220V and three-phase 380V setups depending on wiring configurations. High-power models (typically 4A and above) are configured strictly for 380V industrial power supplies.
What is the relationship between Traffic (m³/h) and Total Pressure (Pa)?
Traffic represents the volume of air moved per hour, while Total Pressure is the force required to overcome resistance in the ductwork. As resistance (pressure) increases, the actual traffic volume decreases. The ranges provided show the operational limits for each model.
Are these specifications rated for 50Hz or 60Hz power grids?
All performance ratings listed in this parameter table are tested and rated at a standard frequency of 50 Hz. If you require configurations optimized for a 60 Hz grid, please contact our technical support.