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Lianshu Industrial Area,Wenling,Zhejiang,China

Zhejiang Yitong Machinery & Electronics Co.,Ltd.Founded in 1993 is a company engaged through various types of high-pressure centrifugal fan, the air compressor, axial fan,
centrifugal fan, exhaust fan and low-noise multi-wing
centrifugal fan and so on, vibrator, motor professional 
manufacturer...
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Unpowered Roof Fan

Model
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Description
Protection against condensation and rain
The fan runs around the clock. It can effectively reduce the room temperature, and can prevent condensation on the indoor roof in winter. And it will generate centrifugal force during operation, and the rain can never penetrate.
 
Ventilation, high sensitivity
It only needs a breeze with a speed of 3.2 kilometers per hour or a temperature difference between indoor and outdoor of more than 3°C, and it can run around the clock to achieve the purpose of ventilation.
 
Noise-free and durable
There is no noise when the fan is running, and the core of the fan uses fully enclosed bearings, and the blade base is made of stainless steel sheet at one time. Anti-corrosion, acid and alkali resistance, anti-aging, service life is more than 20 years.
 
Smoking, vacuuming, dehumidification, and odor elimination
When the ventilator is running, it can also effectively remove the hot, dirty, or dust-containing gases in the room, and remove odors from the bathroom and kitchen, to avoid smell and gas from going up and down the stairs, and prevent mildew caused by high temperature humidity loss.

 

 
 Unpowered ventilator specifications
 
Model
 
Blades
 
Height
 
Vortex diameter
 
Ventilation diameter
HF-160 14 250 300 160
HF-200 14 250 300 200
HF-300 24 300 400 300
HF-360 24 400 500 360
HF-400 26 400 500 400
HF-450 25 500 520 450
HF-500 25 500 630 500
HF-600 30 650 720 600
HF-680 32 650 800 680
HF-800 42 750 900 800
HF-900 48 750 1000 900
HF-1000 48 750 1000 1000

 

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暂未实现,敬请期待
暂未实现,敬请期待