All diffusers are manufactured from
high quality extruded aluminium
sections, with inner core located into
outer frame using spring and bar with a
retention chord fitted to each unit.
A choice of 14 different square or
rectangular diffuser air patterns for
either 1 way, 2 way, 2 way corner, 3 way
or 4 way are available for supply air
applications and matching return air.
An angular style inner core assembly
provides a fixed horizontal air pattern,
capable of handling a large volume of
air at a given pressure drop and noise
Inner cores are easily removable
allowing on site access or should
internal room layouts be altered, the
core may be substituted for an
alternative air pattern whilst the frame
remains unchanged. To maintain a 4
way appearance, internal blanking
baffles can be supplied to give the
desired air pattern.
The standard 32mm wide flange is
designed for surface mounting or tee bar
installation; otherwise a variety of
flange styles are available to suit
Recessed, Tegular or Spring Tee (clip
in) types of ceiling grid systems.
Each diffuser can be fitted with an
opposed blade damper. The damper is
designed as an air trimming device and
is operated via a screw cam through the
diffuser neck with the core removed.
Purpose designed and correctly selected
plenum boxes, in galvanised sheet metal
construction, are available to ensure the
performance and air flow characteristics
of the diffuser.
Matching plenum box or pan adapter,
side or top entry circular, square or
rectangular spigots available with spigot
dampers if required.
For uniform air distribution it is
recommended that plenum boxes are
supplied with an equalising grid.
As standard the Model SA diffuser is
supplied with a polyester powder white
finish to RAL9010 (30% gloss),
RAL9003, RAL9005, RAL9006,
RAL9016. Other special finishes are
available on request.
Standard Installation Method
Standard is a plain flange for surface
mount by screw fixing through neck or
lay in tee bar installation (Type F0
fixing). Access for installation is with
the core removed.
Countersunk screw holes in flange
(Type F1 fixing).
Clip in Spring Tee style fixing,
confirmation of the ceiling type and
spring tee is required (Type F8 fixing).
Dimensions and Performance
Please see the catalogue available for download below.