KW-K air exhaust valves can be installed in the ceiling, on
the wall or directly in the mouth of a ventilation duct using a
dedicated RM mounting frame. They allow smooth adjustment
of the air exhaust flow rate by rotating the disk closure in
the centre.
The air flow rate depends on the opening ratio, i.e. the distance
between the disk closure distance and the round bezel, and it
is set with a locknut.
