Skip to content

Product / ALE

Halton ALE – Universal grille

Aesthetic in design, suitable for indoor use with horisontal 15° angle deflection.

  • Horizontal air supply, also suitable for exhaust
  • Fixed vanes, stable throw pattern with vertical 15° deflection

Link to Revit model (MagiCAD Cloud)

Request a Quote


  • Horizontal air supply, also suitable for exhaust
  • Fixed vanes, stable throw pattern with vertical 15° deflection
  • Aluminum design with elegant appearance
  • Detachable grille allows cleaning of the grille and ductwork
  • Continuous grilles available with modular design.


  • Airflow adjustment damper
  • Plenum options with measurement and adjustment functions
  • Installation frame


LxH L1 L2 H1 H2
200×50 212 176 62 26
800×100 812 776 112 76
300×100 312 276 112 76
400×100 412 376 112 76
500×100 512 476 112 76
600×100 612 576 112 76
800×100 812 776 112 76
1000×100 1012 976 112 76
600×150 612 576 162 126
800×150 812 776 162 126
1000×150 1012 976 162 126
1200×150 1212 1176 162 126
1500×150 1512 1476 162 126
600×200 612 576 212 176
800×200 812 776 212 176
1000×200 1012 976 212 176
1200×200 1212 1176 212 176
1500×200 1512 1476 212 176

With flow control damper OD/ALE total depth is 35 mm + 45 mm.
The free area of the Halton ALE grille is 65 %.

Special dimensions

In addition to standard sizes, other sizes can be specially ordered. The maximum size is 1500×500 mm (LxH).

It is possible to have a continuous grille of modular design when the installation length is greater than 1500 mm. The maximum total length is 20 m.


Part Material Finishing Note
Frame Aluminium Polyester-painted as
white (RAL9003/30% gloss),
anodised or mill finished
Special colours
(100 %) available.
Vanes Aluminium Polyester-painted as
white (RAL9003/30% gloss),
anodised or mill finished
Special colours
(100 %) available.
Installation frame Aluminium Option: Concealed
screw (CC) fastening
– galvanised steel
Plenum box / spigot Galvanised steel


Accessory Code Description
Balancing plenum PRL For balancing & equalising the airflow
and attenuating the duct noise
Plenum BDR Plenum for duct connection
(with or without attenuation material)
Airflow measurement and
adjustment unit
MSM For supply installation
Sound attenuation IN Mineral wool for the BDR plenum box.
Polyester fiber or mineral wool for
the PRL plenum box.
Flow adjustment damper OD Aluminium opposite blade damper
for airflow adjustment
Installation frame IF For installation without plenum
Concealed screw fastening CC For installation with BDR plenum or IF frame


Supply air is supplied with a 15° vertical angle deflection through the vanes into the space mixing with room air in front of the grille.

Wall installation for horizontal supply or ceiling installation for vertical supply.
In wall installations the recommended distance from the ceiling is 200 mm when the supply air is directed to the ceiling.

The grille can also be used as an exhaust unit.


Size of the installation hole is LxH when installation frame is used, and (L-5) x (H-5) without installation frame.

The grille is connected to the circular duct using either a Halton PRL balancing plenum or a Halton BDR plenum or alternatively directly to the rectangular duct using the IF/ALE installation frame.

Installation frame, IF/ALE        Balancing plenum, PRL           Plenum box, BDR

Fastening options

Clips, as standard (CL)

The grilles are supplied with clips fastening as standard.
Clips fastening is used with IF/ALE, Halton PRL and Halton BDR.

Concealed screw (CC)

Concealed screw fastening is possible when the grille is installed with an installation frame (IF/ALE) or a Halton BDR plenum, though not with a Halton PRL balancing plenum.

Holes for screws are provided in the Halton BDR.

For ceiling installation concealed screw fastening is recommended.

Visible screw

Visible screw fastening is not possible due to the reduced width of the frame (18 mm).


In order to enable airflow adjustment and measurement of airflow rate it is recommended that you connect the diffuser to the Halton BDR plenum or Halton PRL balancing plenum equipped with the MSM module.

The supply flow rate is determined by using the MSM measurement and adjustment module.
Detach the grille and pass the tubes and control spindle through the grille.
Measure the differential pressure using a manometer. The flow rate is calculated using the formula below:

Adjust the airflow rate by rotating the control spindle until the desired setting is achieved.
Lock the damper position with a screw.

Replace the tubes and spindle in the plenum and replace the grille.

The k factor for installations with different safety distances
(D= duct diameter)

D >6 x D min. 3 x D
100 6 7
125 10 12
160 19 22
200 28 32
250 49 51
315 77 83

Airflow adjustment damper OD/ALE

The airflow rate is adjusted by turning the damper blades (1) behind the grille using a screwdriver. The measurement is carried out when grille is installed.


Remove the grille by gently drawing it out by the frame. Use a screwdriver if necessary.
Clean the parts by wiping then with a damp cloth.
Push the grille back into place so that the clips lock (or fix by tightening the concealed screws).

With balancing plenum Halton PRL or Halton BDR + MSM

Remove the measurement and adjustment module by gently pulling the shaft (NB. not the control spindle or measurement tubes!).
Wipe the parts with a damp cloth, instead of immersing in water.
Reassemble the measurement and adjustment module by pushing the shaft until the module meets the stopper.
Push the grille back into place so that the clips lock.


The grille has horisontal fixed vanes with a 15° angle deflection and an 18 mm wide flat frame, anodised or polyester-painted with a white (RAL 9003) colour.

Option 1

The grille can be connected to the ductwork using a plenum with mineral wool as sound insulation material.

Option 2

The grille can be connected to the ductwork using a balancing plenum, which comprises polyester fibre with a washable surface as sound attenuation material.
The plenum comprises an airflow measurement and adjustment unit.
The grille is removable in order to provide access to the measurement and adjustment module in the plenum.

Order code


L  = Length (mm)
200, +1, .., 20000

H = Height (mm)
50, +1, .., 500

Other options and accessories

FS  = Fastening
CL       Clips
CC      Concealed screw

FI   = Finishing
AN       Anodised
MF       Mill finished
PN       Painted

CO = Colour
SW      Signal white (RAL 9003)
X          Special colour (RAL xxxx)
N          No painting

ZT = Tailored product
N         No
Y         Yes (ETO)

Sub products

BDR     Plenum
PRL      Balancing plenum
IF         Installation frame
OD       Opposed blade damper

Code example

ALE-200-50, FS=CL, FI=AN, CO=N, ZT=N


  • Halton ALE – Universal grille



    Shape 2
  • Halton ALE – Yleissäleikkö



    Shape 2
  • Halton ALE – Grille universelle



    Shape 2
  • Halton ALE – Universalgitter



    Shape 2
  • Halton ALE – Vertikal galle med horisontella 15° lameller



    Shape 2
  • Halton ALE-C 单层百叶风口



    Shape 2
  • Halton ALE-ALU – fr


    Shape 2
Contact Us
  • Hidden
  • Max. file size: 2 MB.