BLGB50 Glazing and Curtain Walling Louvre Panels

Aluminium extrusions type 6063-T6 to BS1474 having a minimum thickness of 1.6mm. Mitred frame joints TIG welded for additional strength.

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The louvre comprises louvre blades inclined at 45° and mounted at 50mm pitch within 50mm deep frame. Galvanised bird screen supplied as standard. Frames are provided with a 24mm or 28mm glazing edge to the perimeter for insertion into standard curtain walling or glazing systems. The bottom blade is extended over the outer frame to prevent ingress of water and provide drainage from the louvre face.

Louvre blades secured by a minimum of four no. 8 x 19 screws per blade to provide robust assembly. BL50/75 and BL50/100 systems include extruded aluminium channel mullion to rear to further increase strength.

Louvre sizes made to suit customer requirements.

Fixing

Fixes directly into curtain walling glazing system in place of glass.

Options

  • Insect Screen
  • Blanking Panels (single skin plate or insulated blanking panel)
  • Vermin Guard
  • Alternative frame depths (30mm, 32mm, etc)

Finish

  • Mill finish as standard (untreated and unpolished aluminium)
  • Polyester Powder coatings to any standard RAL or BS 4800 range colours
  • Special finishes available on request

Recommended maximum. size for a single unit: 1000 x 2000 for 50mm deep system . Up to 2000 x 2000 for the 75mm and 100mm deep systems. Larger sizes accommodated in multi-panel systems.

Nominal free area: 51% with bird mesh fitted

Maximum BSRIA weather test rating November 2019 (simulated rainfall of 75mm/hr, wind speed of 13m/sec) (figures based on identically constructed BLS50/50 system):

93.19% BLS50/50/BG (class C)                        93.9% BLS50/100/IM (class C)

Face Velocity (metres per second):       0.5       1.0     1.5       2.0

Pressure drop (Pascals)                        2.48     9.91    22.3    39.65

BLGB 50 louvres

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