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LINEAR FIXED
BLADE DIFFUSER

Linear fixed blade diffuser is designed to provide
a continuous run of diffuser offering one or two
way blow air patterns. Its high capacity makes it
suitable for the modern open office areas. It is
available with a fixed or removable core and standard opposed blade dampers can be fitted to the removable core model.

STANDARD •
Code 0176. Fixed core, one way blow linear fixed
blade diffuser.
Code 0177. Fixed core, two way blow linear fixed
blade diffuser.
Code 0178. Removable core, one way blow linear
fixed blade diffuser.
Code 0179. Removable core, two way blow linear
fixed blade diffuser.
Code 0180. End cap.

The above combinations are available in 1 slot through to 10 slots. The 13 figure code should be modified for two way blow models so that the last four digits show how many slots are discharging in each direction, i.e. A 5 slot two way blow diffuser with 2 slots blowing one way and 3 slots blowing the other would have the last four digits as 0203.

 

 

STANDARD SPECIFICATION

SIZES
The length can be any nominal size from 500mm to 1500mm in one piece. A run longer than 1500mm can be made up to any nominal length from multiple
sections butted up together to give a continuous appearance. Please note that any clips or brackets required for fixing the diffuser are not included with the basic package because the methods of fixing are numerous. The nominal width is determined by the number of slots and the one or two way discharge
pattern. See the table below:-

CONSTRUCTION
Aluminium with mechanical joints to lock the mitred corner of the flange.

FINISH
Body and blades silver satin anodised to BS1615 AA5.

FIXINGS
There is no standard fixing arrangement with the basic diffuser package and any fixing clips or brackets are supplied separately. Details of the various fixing methods are shown on page 57 and the different types of brackets and clips for these fixings are shown below. However, splice plates are provided with the basic package to align sections in a multiple section run. Borders are unpunched as standard.

PACKAGING
Each length of diffuser is packaged in a specially designed cardboard carton with crush resistant ends. Any fixing clips or brackets are packed in a separate carton to ensure that they do not scratch the diffuser in transit. The alignment clips are packed in a linen bag and attached to the diffuser.

Technical information.
See page 58

 

OPTIONAL ALTERNATIVES/ADDITIONS

Finishes
Any BS, RAL or NCS colour. Code 145. Please
specify the colour reference. It may also be possible to anodise to alternative finishes for substantial quantities.

Opposed Blade Dampers
Opposed blade dampers (Code 0106) can be fitted to active sections on the removable core model only. They are fitted between the fixing brackets.

Fixings
The borders can be punched with countersunk holes. Size No 6 x 11/2´´ self tapping screws are provided and finished the same colour as the linear slot. (Fixing type 0F1). Please specify hole centres. This method of
fixing should not be used for sections with plenum boxes or where the material that the diffuser is being fixed to is not adequate to support the weight. It is advisable to suspend the equipment from the slab above in these situations. See page 57 for other fixing methods for which the following clips or brackets are available:-

Code 0307. Saddle brackets for Type 0F18 fix.
Code 0308. Saddle brackets for Type 0F19 fix.
Code 0304. Hanging cleats (wire) for Type 0F23 fix.
Code 0305. Hanging cleats (rod) for type 0F24 fix.

The number of saddle brackets required up to 1 metre long section = 2 off and between 1metre and 1.5 metre long section = 3 off. The number of cleats required up to 1 metre long section = 4 off and between 1 metre and 1.5 metre = 6 off.

BLANKING PLATES
Code 0395. A blanking plate can be fitted to non active sections, if required. These are fabricated from sheet steel and painted matt black.

ADDITIONAL ALIGNMENT PLATES
Internal alignment plates. Code 0397
External alignment plates. Code 0398

HEADER BOXES (Removeable Core Models only)
Header boxes are available manufactured from Zintec
coated sheet steel and either un-insulated or insulated internally. The internal insulation can be thermal or acoustic / thermal.

Code 0342. Un-insulated header box for linear diffuser without dampers.
Code 0344. Un-insulated header box for linear diffuser with dampers.
Code 0343. Thermally insulated header box for linear
diffuser without dampers.
Code 0345. Thermally insulated header box for linear
diffuser with dampers.
Code 0345. Acoustically insulated header box (10mm material) for linear diffuser without dampers.
Code 0348. Acoustically insulated header box (10mm material) for linear diffuser with dampers.
Code 0347. Acoustically insulated header box (25mm material) for linear diffuser without dampers.
Code 0349. Acoustically insulated header box (25mm material) for linear diffuser with dampers.

See Sheet Metal Work section for details, codes, dimensions and the recommended spigot diameters available for the different fixing arrangements.

We can also design header boxes with non standard heights and spigot combinations where there is a
limited space in the cavity. Header boxes can be fitted with quadrant dampers in the spigot for either manual (Code 0483) or cord operated (Code 0484) control.

 

OPTIONAL ALTERNATIVES/ADDITIONS

• The code for the basic diffuser should have 13 digits.
See page 1.
• Please always give the length first and then the number of slots.
• Please note that if the diffuser is to be two way blow, the last four digits show how many slots blow in each
direction i.e. A 4 slot fixed core discharging 1 slot to left and 3 slots to the right would be coded 0177/00000/0103.
• Add codes for additions / alternatives as suffixes.

EXAMPLE:
A 6 metre run of 3 slot, one way blow with end cap at each end, removable core, painted RAL 9010 satin,
2 off x 1600mm long un-insulated header boxes, each with one 250 diameter spigot and opposed blade dampers on the active sections would be coded:-
0178/06000/0003.+2x0180+0106/01600/0139+
0145 RAL 9010.+ 2x0344/01600/0139 (1x250 Ø spigot)

Applications. Supply * Extract * Ceiling *

 


FIXING DETAILS FOR LINEAR FIXED BLADE CEILING DIFFUSERS
CODES 0176, 0177, 0178 & 0179


 

PERFORMANCE DATA FOR
LINEAR FIXED BLADE DIFFUSER


• Horizontal Discharge. Codes 0176, 0177, 0178 & 0179
Linear Louvred Face Diffuser. Ceiling Mounted.

 

 
 
 
 
 
 
 
 
 


 
 

 

 
 
 
 

 

 

 

 

 
   
 
 
 
   
   
   
   
   
 
  SCOTTAIRE Davy Way, Llay Industrial Estate, Wrexham,LL12 0PG Tel: 01978 856555 Fax: 01978 856655 Email: sales@scottaire.com