CRU Vertical Discharge Roof Fan
Centrifugal fan series for vertical-discharge roof exhaust.
Product Features
- General
It can be produced up to 12,000 m³/h capacity.
- General
It has radial backward-curved blades for high efficiency.
- General
The vertical-discharge roof construction exhausts air upwards above roof level.
- General
It is resistant to rain and snow and suitable for outdoor operation.
- Motor
IP54 motor protection is available.
- Motor
Speed control can be applied to all models.
- Motor
Suitable for continuous operation at +50°C.
Where is it used?
Model Technical Data
Nominal airflow alone is not a selection criterion. Verify the final model together with the required pressure and duty point in Fan Selection.
| Model | Nominal airflow | Voltage | Motor power | Speed | Current | Sound |
|---|---|---|---|---|---|---|
| CRU 20-2M | 1,100 m³/h | 230V-50Hz | 0.14 kW | 2,600 rpm | 0.6 A | 56 dB(A) |
| CRU 25-2M | 1,450 m³/h | 230V-50Hz | 0.2 kW | 2,600 rpm | 1.05 A | 57 dB(A) |
| CRU 28-2M | 1,900 m³/h | 230V-50Hz | 0.24 kW | 2,500 rpm | 1.1 A | 59 dB(A) |
| CRU 31-4M | 2,550 m³/h | 230V-50Hz | 0.21 kW | 1,400 rpm | 1 A | 60 dB(A) |
| CRU 35-4M | 3,300 m³/h | 230V-50Hz | 0.4 kW | 1,400 rpm | 1.2 A | 62 dB(A) |
| CRU 40-4M | 4,400 m³/h | 230V-50Hz | 0.51 kW | 1,380 rpm | 1.5 A | 66 dB(A) |
| CRU 45-4M | 5,800 m³/h | 230V-50Hz | 0.8 kW | 1,350 rpm | 2.5 A | 68 dB(A) |
| CRU 50-4T | 9,500 m³/h | 400V-50Hz | 1.5 kW | 1,400 rpm | 2.6 A | 76 dB(A) |
| CRU 56-4T | 12,000 m³/h | 400V-50Hz | 1.8 kW | 1,340 rpm | 4.5 A | 79 dB(A) |
Source: Vensis Fan Selection Suite. Product and motor configurations must be verified for the ordered model.
Frequently Asked Technical Questions
What is CRU?
Centrifugal fan series for vertical-discharge roof exhaust. Sub-models in this product family are listed on this page from the Vitlo product database.
How do I select the right model?
Along with the required airflow, system pressure, operating conditions and any special safety requirements must be defined. The duty point should then be verified in Fan Selection.
Why are the technical table and selection tool used together?
The product page provides clear technical context, while Fan Selection verifies the model and duty point.
Let’s select the right fan for your project.
Share airflow, pressure and application conditions; we will evaluate the appropriate series and model.