Coltlite CLS 45 bevelled glass louvred ventilator

Coltlite CLS 45 bevelled glass louvred ventilator

Colt International Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

  • BSI Kitemark

    BSI Kitemark

    Certificate type

Natural glazed casement ventilator, fitted with chamfered / bevelled glass, suitable for natural day to day ventilation.

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Smooth, flush-glass design with bevel-edged glass louvres and point-fixed louvre brackets without the need for frames, so a continuous appearance as seen from the outside. Non-thermally broken extruded aluminium outer frames. Frameless single glazed controllable louvres, closing flush, with either 8mm, 10 mm or 12 mm thick toughened bevelled glass. Overall frame depth 47mm, frame face width 40mm. For installation in the vertical only. Externally tested to EN 14351-1 and CE marked, guaranteeing its performance as a façade element. Not tested or certified for smoke control ventilation. Manufactured under the ISO 9001 quality and ISO 14001 environmental management standards.

General information


[Finish, Polyester powder coated (RAL colours); Natural silver anodised finish AA20]


Uniclass 2015

Pr_70_65_04_56 Natural smoke and heat exhaust ventilatorsPrimary


H11/140 Louvres

L10/650 Metal louvres

Specification data - Natural smoke and heat exhaust ventilators

Product Reference

Coltlite CLS 45 bevelled glass louvred ventilator

Overall ventilator size range



250 mm - 1600 mm


300 mm - 3000 mm

Glass type

8 mm overall clear bevelled toughened glass

10 mm overall clear bevelled toughened glass

12 mm overall clear bevelled toughened glass

Frame finish

Anodised aluminium AA20, standard 20 mu, colour ___

Polyester powder coating, standard 60 mu, colour ___

Fixing options

Fixing to curtain walling using separate adaptor

Fixing to structural opening using either through frame or strap fixings

Control options


Manual operation

Not required


Motorized operation

Not required

230V AC actuator

24V DC actuator

Standard product features


Extruded aluminium 47 mm outer frame with frameless, controllable bevelled glass single glazed louvres.

Size range:

250 mm to 1600 mm wide x 300 mm to 3000 mm high as one module.

Blade pitch:

170–350 mm (depending on overall size of complete unit), with central pivot point.

Product Options

Glass type:

8, 10 or 12 mm overall clear toughened glass bevelled edge louvre blades.


  • Polyester powder coated (RAL colours).
  • Natural silver anodised finish AA20.

Controls details:

  • Hand – Lever operation.
  • Motorized – Frame mounted actuator (hidden behind side frame profile) positioning depends on the actuator selected. Mounted on either side frame (left/right).
  • Typical opening times to be 20-60 seconds.
  • With electric versions there is an optional device to reduce the speed and force of the closing louvres in order to reduce the risk of finger trapping.

Its performance varies with size and options selected (tests to EN 14351-1):

  • Air permeability: Class 2 to EN 12207.
  • Watertightness: Class 2A to EN 12208 .
  • Resistance to wind: Class B4 to EN 12210.

Third party certifications
  • HFB Engineering: CE Mark / compliance with EN 14351-1: 2006. : Test Certificate PZ 31100 2037/X/2012 according to EU-CPR-305/2011
  • FM00354 - Manufactured to ISO 9001:2008
  • DNV: 21654-2008-AE-GBR-UKAS - Manufactured to ISO 14001:2004
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