TYPE WL |
Weather Louvre manufactured of extruded Type 50S are held in place by screws. Blades are spaced 50mm apart. |
Standard Spacing |
Top blade fits flush with frame. Lip of Bottom Blade overlap frame. |
Accessories |
WM |
= |
Wire Mesh |
|
OBD |
= |
Opposed Blade Damper NOTE: Adjustment from face of Louvre is not advisable. |
|
PC |
= |
Punched Counter Sunk Holes |
Dimensions |
ON |
= |
Normal Duct size |
Notes |
(1) |
Alternative Meshes available on request |
|
(2) |
|
For Weather Louvres smaller than 450 x 300 we recommend the use of Type RA with RARB Blade with19mm spacing. |
Type WL: |
|
|
Weather Louvre |
Vermin Protection: |
|
= |
Plastic Bird mesh - Standard |
|
|
= |
Galvanised wire mesh |
Finishing Options |
NA |
= |
Natural Anodised |
|
EPC |
= |
Epoxy Powder Coating |
Ordering Procedure: Example |
REF |
QTY |
SIZE (LxH) |
TYPE |
ACCESS |
FRAME |
FINISH |
SPECIAL INSTRUCTIONS |
1 |
12 |
1000 x 850 |
WL |
- |
50 |
F.S. |
|
Note:
(1) Dimensions given are for ON size
(2) If code "OS" is entered under SPECIAL INSTRUCTIONS, then dimensions given are over flange


EXAMPLE |
Volume - 0,4m3/s |
Velocity: 2.5m/s |
Result: 0.16m/2 |
OR: 400mm x 400mm |
NR: 35 |
PRESSURE LOSS: 30PA |