Air terminal device for ventilator - consists of hollow casing with perforated cover and means to control air outflow and some perforations of larger size

摘要

The hollow casing (11) has a perforated cover (14) but a part (19) of the cover has perforations of a larger girth (18) defined by a control medium (20). The inner contour of the hollow body (11) is circular or multi-angled, and the perforations outside the part (19) of the cover have the same cross sectional form. The perforations in the upper part of the cover may be round, oval or multi-angled cross-section. The long axis of the holes (18) in the upper part is in the same direction as that of the hollow cavity (11). The control (20) relative to the openings (18) is relatively adjustable. USE/ADVANTAGE - Air terminal fitting provides good air change with min. technical cost.