subject: On the Use of Centrifugal Fans [print this page] Centrifugal fans are wheels being placed on a shaft that circulates in a scroll-shaped housing. Air enters and makes a right-angle turn, and is forced through the blades of the centrifugal force into the scroll-shaped housing. The changing shape of the scroll also converts the velocity pressure into static pressure.
There are three types of centrifugal fan, one of which is the radial blade fan that are used for heavy dust loads. This type of fans is more known to its distinct straight, radial blades that do not usually get clogged up by the material and could have only minimal abrasion. It is also known of just having medium noise.
The second type operates at higher speeds and more efficient. But unlike the radial blade fun, this could clog up materials so these types of blades are usually being used after a dust collector. This are the backward blade fans, although these are nosier, clients prefer this for higher efficiency performance.
The third type is known of having curved blades that are tipped in the direction of a cycle or rotation. This is perfect if you have a limited space, it has a low tip speed but also have a low noise factor. This are the forward curved blade fans and usually used against low to medium static pressures.
Centrifugal fans are commonly used is in pressurizing staircase and in elevator shafts, also placed in kitchens as exhaust fans, extracting fumes in comfort rooms and as dust exhaust in some factories. Centrifugal fan manufacturers make sure that their products are reliable and could deliberate maximum, efficient performance especially when it is needed the most.
Centrifugal fans manufacturers mostly produces backward blade model, known for its high efficiency. Most of these manufacturers have their own engineering that follows strict guidelines in providing the best, low power requirements, durable and high end performance.
These products are widely available online and in local newspapers and known manufacturers. They have different schemes in attracting customer worldwide; some would lower the price from the rest, another is giving free one year maintenance, replacements and many more. Centrifugal fans manufacturer catches more attention if they were already tested, known by many, reliable and been certified by the experts.
