OKR • Aluminium backdraught shutters

Aluminium pressure-relief shutters for surface mounting.

• Cairox

• Shutters OKR are used for air exhaust in any type of installation. Fixing with invisible screws supplied with the shutter
• 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

• Aluminium

• Frame and blades made of anodized aluminium

• Anodized natural finish

• Surface mounted by invisible srews behind the movable blades

• Screws (included)

• The air exhaust shall be effectuated through aluminium pressure-relief shutters, surface mounted with blades opening at a pressure of 5 Pa for air speed of 2m/s, 8 Pa for air speed of 3m/s, and 12 Pa for airspeed of 4m/s
• Anodized aluminium finish
• CAIROX Type OKR

• OKR, 173 X 173

Explanation

OKR = Type grill

173 X 173 = Exterior size grill