- The frame and blade are high quality extruded aluminium profiled construction with the advantage of corrosion resistance and rigidity.
- Diffuser shall be coned type with each cone manufactured by extruded aluminium louvered profile ,arranged in concentric cones to deflect air equally in four directions.
- Damper is fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.
- Damper blades are separated from its frame by nylon bushes.
- This product can be manufactured for one, two, three and four way throws.
- Foam gasket is sealed around the back of the frame as option to avoid air leakage.
Model ACD4R: Construction same as ACD4R+D, without opposed blade damper and foam gasket.