Ventilation is almost invisible, but plays a very significant role in the life of every modern person. Fresh air is needed both at work and at home. However, quite often in everyday life we are faced with the absence or weak power of air circulation systems. Many do not suspect that the presence of dampness in the corners of the bathroom is a sign of poor operation of the hood, and a headache may be caused by a lack of fresh air. At the same time, few people will remember about duct fans. But in vain!
Simple ventilation, with which air is supplied from the street to the room, as well as hoods with a clogged ventilation shaft, are not enough. Natural ventilation is often ineffective. In some cases, you just need to think about creating a forced (mechanical) air exchange system. Channel fans will come to the rescue.
In a specially designed system, air flows through flexible and rigid ducts, heaters, silencers and other special devices. Perhaps the most important part of this complex design is the fan. The channel fan round (or rectangular) is built in, as you might guess, in the channel. Or attach to the ducts of the corresponding forms.
Due to their compact design and the ability to install in any position (horizontal, vertical or inclined), these products have gained wide popularity.
Designers and builders prefer such equipment, because it is reliable in operation, it is very easy to install and does not require particularly complicated after-sales service. When installing this type of fan, manufacturers recommend the use of special mounting brackets and clamps, with which it becomes even easier to install (and if necessary dismantle). In addition, these useful devices prevent transmission of vibration to the ducts.
As a rule, all duct fans have the ability to multistage speed control, and some models are equipped with thermal contacts with restart, protecting the engine from overheating. The line of equipment is represented by a wide range of capacities. In addition, modern manufacturers produce plastic models with a polymer coating, having an aesthetically attractive design. The round duct fan made of galvanized steel, in turn, in addition to a good appearance, also has high strength and corrosion resistance, which in many cases is valuable.
Such obvious advantages and excellent consumer characteristics make it possible to use this technique for ventilation in industrial and public buildings for various purposes. Pools, gyms, classrooms, production and kitchen facilities, cafes, shops, laboratories - the normal functioning of these premises is impossible without forced air exchange.
Some restrictions are worth noting: duct fans are not allowed to be used for transporting aggressive and explosive gases, as well as polluted air.