Natural Air Ventilators
Louvre Ventilator
Standard drainable
or storm louvre
Damper options
Single blade
aluminium, insulated,
acoustic or plastic
blade damper
options.
Controlled ventilation
Fresh air intake or
extract
Passive night cooling
Link to BMS
Fit to structure or
window systems
Aluminium blade damper with weatherstrip
and blade holder.
Aluminium blade damper
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Naco
Natural Air Ventilators
Metal louvre / damper combination
Natural air ventilator - NAV WL
Aluminium blade damper
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50, 75, 100 or SLH-S series louvre with integral aluminium
blade damper incorporating blade and side seals.
Materials
Louvre and damper frame extruded aluminium grade ENAW 6063T6 to BSEN 755.
Frame construction
Screw joints as standard.
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Specification
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Catalogue |
Finishes
Extruded aluminium (mill finish).
Polyester powder coated to BS 6496.
Anodised to BS3987.
Bird wire guard
Fitted as standard, 18g
expanded aluminium.
Insect screen
If specified, 23g expanded aluminium.
Free area
The face core area provides approximately 47% free area.
Grilles
Internal grilles from our Air Diffusion brand are available where required.
Actuators
Dampers are fitted with:
a) 24V AC 10 Nm actuator with modulating action or simply drive open and and
drive close.
b) 24V AC/DC 7 Nm failsafespring open or close actuator with modulating action
or simply spring open and drive close (or vice-versa).
Sizes
Single damper maximum 1400 mm W x 2400 mm H
Double damper maximum 2800 mm W x 1500 mm H.
Coupling
Panels may be coupled horizontally or vertically.
For more information including dimensional
and installation data please view
the 6 page Natural Air Ventilators Catalogue
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