MODEL: DDS-7 & DDR-7                                                           
DASCO's  Round Diffusers DD-7 are designed to deliver air in a reasonably uniform and horizontal pattern. The design consists of a conical core followed by continuously concentric rings to adjust the air flow pattern. This design feature will assure little turbulence in the air stream and allow for the distribution of the smudge pattern. It also provides excellent air distribution efficiency.
On projects where the DD-7 diffusers are used, the three stepped down cones on all sizes result in a uniform appearance all over the project. Moreover, this configuration results in a lower jet velocity and hence less pressure loss. Simple dismantling of the inner cones allows for a very practical way of installation and damper adjustment.