NSHEV Louvre

NSHEV Louvres FLW Range

Ideal for end of corridor requirements, particularly within high-rise buildings.

The aluminium-framed louvres are tested in accordance with EN 12101-2 to provide dual-purpose natural ventilation and smoke ventilation.

Performance Features

  • EN 12101-2 certified
  • Operated by D+H louvre drives
  • Opening within 60 seconds
  • Anti-trap protection
  • Multiple sizes and bespoke designs available
  • Dual purpose, smoke and natural ventilation
  • Single, double or triple-glazed blades available, or aluminium in-fill panels
  • Can fit into standard apertures or glazed into curtain walling


Louvre frames have mitred corners with internal brackets and screw-fixed. Louvre blades are centre-pivoted and close flush with the external vent frame.

Thermally broken aluminium extrusions. Frame sections have mitred corner with internal brackets and press-formed.

Double or triple-glazed or insulated aluminium panel with a total thickness of 23-40 mm. Including EPDM gaskets.

Concealed rack and pinion mechanism provides easy to use, maintenance free, smooth and synchronised operation of the louvre blades.

Technical Data

Certification EN 12101-2
Reliability class (Re) 1000
Wind load class (WL) Up to 3000 N/m²
Resistance to heat B300 (300 °C)
Low ambient temperature rating (T) -5ºc
Opening time <60 seconds
Voltage 24v
Current consumption 0.8 amp (per drive)
Cable 2.5m silicone


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