DEF
-The DEF is a ceiling swirl diffuser,
suitable for use in offices, hospitals
and shops.
-It can be installed in false ceiling
or it can be freely hung at a height
of between 2.6 and 4.0 m above
the floor.
-The DEF diffuser allows you to
change the air distribution by adju-
sting the deflectors.
-The air flow range is between 70
and 300 l/s (245/1070 m3/h).
-We recommend use with a mini-
mum temperature of input air that
is a maximum of 10°C lower than that of the room.
-The Serie of DEF diffusers is based on 2 sizes: DEF 1; DEF2.
-The DEF diffuser is equipped with a plenum box with circu-
lar side connection, complete with equalizer and damper
calibration operated from inside.
-It can be supplied, on request, with black deflectors.

Construction characteristics
-The DEF diffuser is built in powder-coated steel with RAL
2010 colour. The deflectors are in plastic (ABS).
-The plenum box is made of galvanized steel.