Application
These fans are designed especially for local ventilation and are installed onwall brackets inside the rooms. The ability to overcome significant flow resistances, makes them useful in application with local exhaust systems.
Structure
The fan consists of a steel spiral housing and an electromotor. The
aluminium radial impeller is fitted on a motor shaft. Impeller blades
cross-section resemble the profile of an aeroplane wing, providing low
noise. To the fan inlet is fastened a flange to install it on a wall bracket
or, directly on a filtering unit. Whereas, the outlet is ended with a
round ferrule to attach safely the seam-spiral duct (rigid conduit) or
designed for flexible connections. For safety reasons, the inlet and
outlet are equipped with a protective grill. It is recommended to
install a TK-type silencer at the fan inlet and outlet.