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Low-Noise Multi-Wing Centrifugal Fans for Commercial Kitchens - China Suppliers & Factory Solutions
Parameters
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| Model | Speed (r/min) |
Power (kW-P) |
Traffic (m³/h) |
Total Pressure (Pa) |
Voltage (V) |
Frequency (Hz) |
Horsepower (HP) |
|---|---|---|---|---|---|---|---|
| 2.8A | 1450 | 0.75-4 | 1780–3130 | 570–450 | 220/380 | 50 | 1 |
| 1450 | 1.1-4 | 2570–3840 | 600–460 | 220/380 | 50 | 1.5 | |
| 3A·S | 1450 | 1.1-4 | 2750–4050 | 750–610 | 220/380 | 50 | 1.5 |
| 3A·M | 1450 | 1.5-4 | 3270–4950 | 880–630 | 220/380 | 50 | 2 |
| 3A·L | 1450 | 1.5-4 | 3950–5250 | 840–610 | 220/380 | 50 | 2 |
| 3.2A | 1450 | 2.2-4 | 4465–6138 | 990–730 | 220/380 | 50 | 3 |
| 3.5A | 1450 | 2.2-4 | 4950–6633 | 1150–850 | 220/380 | 50 | 3 |
| 1450 | 3-4 | 5204–7011 | 1205–755 | 380 | 50 | 4 | |
| 4A | 1450 | 4-4 | 5900–9500 | 1375–990 | 380 | 50 | 5.5 |
| 4.5A | 1450 | 5.5-4 | 8270–12250 | 1600–1170 | 380 | 50 | 7.5 |
| 5A | 960 | 5.5-6 | 10990–15750 | 1350–1250 | 380 | 50 | 7.5 |
| 1450 | 7.5-4 | 12950–18320 | 1550–1460 | 380 | 50 | 10 |
Frequently Asked Questions
Q
What does the speed specification (r/min) indicate in the parameter table?
The speed value expressed in revolutions per minute (r/min) refers to the rotational speed of the fan motor. For most models in this series, the standard speed is 1450 r/min, while the 5A model also offers a lower 960 r/min option, which typically provides quieter operation and lower power consumption at a reduced airflow capacity.
Q
What is the difference between the 3A·S, 3A·M, and 3A·L models?
The suffixes S (Small), M (Medium), and L (Large) denote different size variants within the 3A series. Each variant offers progressively higher airflow (Traffic m³/h) and total pressure (Pa) output, allowing users to select the most suitable model based on their specific ventilation requirements and installation space.
Q
Which models support dual voltage (220V/380V) operation?
Models 2.8A, 3A·S, 3A·M, 3A·L, 3.2A, and 3.5A (first configuration) support dual voltage input of 220V/380V at 50 Hz. Larger models such as 4A, 4.5A, and 5A operate exclusively on 380V, which is standard for higher-power industrial applications.
Q
How do I select the right model based on airflow (Traffic m³/h) requirements?
To select the correct model, first calculate the required air volume for your space (typically: room volume × air changes per hour). Then match this figure to the Traffic (m³/h) range listed in the table. For example, if you need approximately 10,000–15,000 m³/h, the 5A model at 960 r/min would be an appropriate choice.
Q
What does the total pressure (Pa) value represent and why is it important?
Total pressure (measured in Pascals) represents the fan's ability to overcome resistance within the duct system, including bends, filters, grilles, and duct length. A higher total pressure rating means the fan can effectively move air through more complex or longer duct configurations. Selecting a model with adequate total pressure ensures efficient airflow delivery in your specific installation.
Q
Why do some models (2.8A and 3.5A and 5A) have two rows of specifications?
Models with two rows of specifications offer two distinct configuration options — typically differing in power (kW-P), airflow (m³/h), total pressure (Pa), and horsepower (HP). This gives installers flexibility to choose the configuration that best matches their performance needs and available power supply, without requiring a completely different model.