FC-3 air inlet produced by YUYUN SANHE adopts the design of mechanical exhaust and air supply in negative pressure, realizing the function that the dirty air in the room will quickly discharged out of the room and the fresh air out of the room enters the room after nature balance without opening the window. Then the indoor and outdoor air flow exchange is formed so it will ensure the indoor air quality. At present, this air inlet are mainly used in the large-scale chicken farm.
The ventilation door can be opened by own gravity through the drawstring so there is no need of spring.
The drawstring should be installed above the side window. The ventilation door will be closed when tighten the drawstring and it will open when release the drawstring.
There are two kinds of configuration can be chosen at the back of the air window. They are anti-bird net and lens hood, both of which are fixed by screw.Outline dimensional drawing