The Features of Non Power Roof Ventilation Fan by Xianrun Blower

Non Power Roof Ventilation Fan Features by Xianrun Blower 

1. The curved blades have the best condition after scientific calculation, it can prevent rain and water intrusion during the working. The air exhausting efficiency is high, and the ventilation fan will operate lightly as long as the indoor and outdoor temperature difference is more than 0.5 Celsius degree.

Non Power Roof Ventilation Fan

2. Center shaft have detailed steps, which guarantee the fan blade will never be out of shape under high speed operation, and improve the ventilation fan service life. 

3. Changed diameter pipeline can make the ventilation fan easy to install in the slanting roof. The installation is very simple, ordinary people can finish the installation within 30 minutes. 

Non Power Roof Ventilation Fan

4. Saving money, reduce supporting cost, save electricity cost, and mounting cost, reduce noise.

5. Long service life, this model non power roof ventilation fan can work at least 10 years.

6. Free lubrication and maintenance.  

7. The material is stainless steel, and corrosion resistance. 

Non Power Roof Ventilation Fan

Non Power Roof Ventilation Fan By Xianrun Blower

Non Power Roof Ventilation Fan By Xianrun Blower 

Introduction 

Non power roof ventilation fan, which is rotated by natural wind, change the parallel air flow direction; speed up and change the airflow from up to bottom vertically; so as to improve the effect of indoor ventilation and air exchanges.

Large Airflow Axial Fan for Ventilation

This ventilation fan does not use electricity, no noise, long-term operation, and eliminate indoor hot gas, moisture and noxious gas. According to air nature laws and principle of air flow rule, the non power roof ventilation fan installed on the roof reasonably, 
exhaust indoor heat air and dirty gas, so as to improve the indoor environment.

Large Airflow Axial Fan for Ventilation

Working Principle 

Turbine ventilation fan uses heat convection caused by the temperature difference between indoor and outdoor. The heat convection drives turbine fan rotation this turbine rotate, so as to exhaust dirty air to outdoor by making use of centrifugal force and negative pressure effect.