NBS Source
System 17 Concealed Vent

Application

For use in a range of applications.

Description

A concealed top hung casement opening vent, designed to be fixed within Metal Technology curtain walling systems, to appear frameless externally.


Can be incorporated with Metal Technology's standard capped System 17, System 17 Latitude, and System 17 SP to provide a frameless opening vent.


Finishes:

  • Available in both anodized and powder coated finishes.
  • This system can accommodate a different colour finish internally to that used externally.
  • Metal Technology's powder coating is produced to Qualicoat standards.


Construction:

  • Frame members are mitre cut at 45°, corners are reinforced with extruded aluminium crimping cleats and corner braces, and a secure joint is formed by pneumatically crimping into the extruded crimping cleat.
  • Mullion and transom bars are square cut shaped and fixed securely to the frame by means of stainless steel screws and fixing cleats.
  • Glass is structurally bonded to the vent profile by specialist silicone applicators.
  • All frame joints are sealed during construction against entry of water using Metal Technology’s two-part adhesive.


Thermal performance:

Metal Technology’s Concealed Vent, in conjunction with the correct glass specification, is designed to aid compliance with the latest thermal requirements of the current building regulations.


Metal Technology recommend that only A2 or A4 Austenitic (300 series/class 70) stainless steel fixing screws are used in the assembly of their products.


General information

Shape

Rectangle

Square

Finish

Anodized

Anodized to BS 1615 or BS 3987 or BS EN 12373-1.

Powder coated

Powder organic coated to BS 6496 or BS EN 12206-1.

Material

Aluminium

Aluminium profiles are extruded from aluminium alloy 6060 T6, T5 or T4 complying with the recommendations of BS EN 12020-2 / BS EN 755 Parts 1 to 9.

Nylon

Polyamide thermal breaks are produced from glass reinforced nylon sections designed to withstand temperatures in excess of 200°C, allowing the sections to be powder coated after thermally breaking.

Glass

Size

  • Max vent width: 2500 mm.
  • Max vent height: 2500 mm.
  • Vent weight: 180 kg.

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Uniclass

Pr_30_59_98_02 Aluminium window unitsPrimary

CAWS

L10/25 Aluminium windows

L10/335 Aluminium windows

L10/330 Aluminium windows

Specification data - Aluminium window units Enhanced data

Dimensions and configurations

  • Vent width (maximum): 2500 mm.
  • Vent height (maximum): 2500 mm.
  • Vent weight (maximum): 180 kg.

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Product performance

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Weather performance

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UK exposure category

Design Wind Pressure to be determined in accordance with BS 6399 - Part 2: 1997.

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Air permeability

Class 4.

Watertightness

Class E900.

Resistance to wind load

Class E2400.

Frame

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Profile

Mitre cut at 45°.

Corners are reinforced with extruded aluminium crimping cleats and corner braces, and a secure joint is formed by pneumatically crimping into the extruded crimping cleat. 

Finish as delivered

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Coating

Anodized to BS 1615.

Anodized to BS 3987.

Anodized to BS EN 12373-1.

Powder coating to BS 6496.

Powder coating to BS EN 12206-1.

Colour

Consult manufacturer and insert requirement.

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Glazing or infill

-

Requirements

Insert thickness requirement.

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Type

Aluminium alloy 6060 T4.

Aluminium alloy 6060 T5.

Aluminium alloy 6060 T6.

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