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Backdraught shutters for surface mounting with aluminium frame and PVC blades
Brand
Cairox
Application
For air exhaust in any type of installation.
The blades will open when the shutter is exposed to overpressure. Pressure loss of 20 Pa for air speed of 2 m/s, 25 Pa for air speed of 3 m/s, and 30 Pa for airspeed of 4 m/s
Material
Aluminium and PVC combination
Composition
Solid frame made of aluminium, finished grey, RAL7016
Grey PVC blades
Up to 590 x 590 made out of 1 frame and simple blades
From size 670 x 670 is reinforced with a central fixing bar and double row of blades
Colour
Grey, RAL 7016
Mounting
Mounted by invisible screws behind the blades
Text for tender
The air exhaust shall be effectuated through backdraught shutters, surface mounted with PVC blades and solid aluminium frame. The blades will open at a pressure of 20 Pa for air speed of 2m/s, 25 Pa for air speed of 3m/s, and 30 Pa for airspeed of 4m/s
Finish RAL 7016
CAIROX Type VK
The air exhaust shall be effectuated through backdraught shutters, surface mounted with PVC blades and solid aluminium frame. The blades will open at a pressure of 20 Pa for air speed of 2m/s, 25 Pa for air speed of 3m/s, and 30 Pa for airspeed of 4m/s