Language:CHINESESENGLISH
Natural ventilation device, also called the roof ventilator and natural ventilation ball, is ventilation equipment put on the top sides of the industrial buildings. Without electricity supply, it brings enough outdoor fresh air in 24 hours, promoting the plant air circulation convection and improved working environment.Common material on the market: color steel and stainless steel (201 and 201 stainless steel material). This product is oil and electricity free, no need to repair with simple installation. It only needs 3.2 km/h wind or more than three degrees Celsius temperature difference between indoor and outdoor conditions to ensure operating 24 hours a day. It can reach the goal of ventilation.Function: Produce air convection, heat release, reduce air conditioning load and increase indoor fresh air. It can also drain moisture, mildew and steam humidity from the roof, keeping the proof dry. Compared with heavy electric blowers, it reduces support costs and noise and saves electricity.Application: Applicable to all factories, warehouses, and the roof ventilation, aeration, air release spaces.Working principle:1. Using principle air convection in nature, flow any parallel direction air, speed up and shift to vertical air flow.2. Using stack effect produced by the buildings and equipment combination to achieve indoor ventilation.Natural ventilation device airflow parameter list: air units: m3/hr
External wind speedSpecification
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Ф300
7
15
67
126
187
352
668
1683
2472
Ф450
34
131
334
423
600
833
1417
2834
3960
Ф500
39
151
384
486
690
1015
1630
3259
4554
Ф600
61
173
684
985
1397
1890
2457
3410
4946
Ф800
92
260
1026
1478
2096
2835
3686
5115
7419
QR code of public account