Backward Curved Blade Fan. The forward and backward centrifugal fans mainly refer to the different blades of the assembled fan. Backward curved fans are designed to last for a very long time, as well as to be efficient in air, gases, dust, and material handling applications.
They are more expensive to build than fc and bi fans. Centrifugal fans are capable of generating relatively high pressures. Backward curved fans are designed to last for a very long time, as well as to be efficient in air, gases, dust, and material handling applications.
Centrifugal Backward Curved Blade Fan Low Capacities And High Pressures.
Centrifugal fans are capable of generating relatively high pressures. As the wheel spins, the air moves and accelerates from centrifugal force, gliding over the wheel blades and exiting. With this type of fan wheel higher efficiencies are.
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Thus, backward curved blade fans can be used without a spiral casing for special cases like plug fans. The backward curved blade profile empowers these fans to move high volumes of air at high static pressures with high static efficiencies. Generally centrifugal fans have three.
Static Pressures Up To 1750 Mmwc.
High peak total efficiency up to 82.4%. Because of their rugged design,. Backward curved impellers have a lower number of longer blades, generally facing away from the direction of rotation but can in some instances curve in both.
