aluminum ventilation grill / steel / square
Best suited to positioning in ceilings, walls or on ductwork.
Fixed blade grilles use blades which are fixed at either 0°, 15° or 45°.
Specified with 0° blades, the high free area and aerodynamic blade design make this a very effective extract unit with minimal noise generation and pressure drops. Should you not require an adjustable throw, fixed blade grilles will often give a tidier appearance than single deflections since the blades cannot be set at different angles to each other.
Extruded aluminium frame and blades
High tensile steel wire
Single row of adjustable blades within frame
Blades held in place by design, as well as high tensile spring wire and starlock washers
Mullions: Central mullion on any unit above 570 mm wide.
Mass / m2 face area:
16.5 kg including opposed blade damper (optional)
Free area: Approx. 80% (FB Fixed Blade 0°)