Description
For intake or extract air, the louvre doors are available in 50mm pitch or 75mm pitch blades and in single or double leaf.
Either with flanged frame or recessed frame, the louvre doors are robustly manufactured with optional threshold details.
Door furniture and ironmongery can generally be provided to suit specific needs and generally include optional mortice locks, door stays, panic push bars and handles.
Construction
From extruded aluminium sections, frame 5.0mm thick, blades 1.6mm thick. All frames are fully welded construction fitted as standard with rear galvanised steel bird mesh screen.
Euro profile cylinder mortice lock and stainless steel hinges with ball bearing washers are fitted as standard and plated brass shoot bolts are fitted as standard to one leaf of double doors.
Size and Weight
Generally to suit individual door openings or can be incorporated within large louvre sections.
Average weight: 20.0kg/m2.
Average free area: 40%.
Rain Defence
The 50mm & 75mm louvre systems have been tested by BSRIA to European standard EN13030:2002 and achieve Class C – (80 – 94.9 % effectiveness).
Airflow Performance
Tested to EN13030:2002 the following aerodynamic coefficient is achieved:
50mm Intake ~ 0.253.
75mm Intake ~ 0.258.
Options
Matt black rear blanking panels
Insulated blanking panels (Thermal & Acoustic)
Guards
Insect screen (Fixed or Removable)
Panic bars, door stays, master keying, keypad locks, door closers, etc.
Spec with NBS Chorus
