The diffusers, KOOLAIR, type S-90-GV, are variable geometry units for installation at considerable heights. They are used in industrial environments, in both heating and cooling systems.
They consist of a perforated cylinder, inner discs, and a damper to change the discharge air flow. The air flows into the cylinder guide through the orifice plate, when contacting the damper changes the discharge air stream.
The S-90-44 version has a larger free air outlet área tan the standard S-90 diffuser to provide an outlet velocity reduction of 35%.
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