KW 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.
The carefully designed geometry of the valve guarantees low
noise level as well as quick and easy installation.
