BURE Variable Geometry Diffusers

Diffuser for large air volumes with adjustable air distribution patterns; suitable for large areas such as high ceiling Entry halls, Industrial buildings, Production halls, Airports or commercial centers. Its adjustable design makes it suitable for both heating and/or cooling. The recommended installation height is between 4 and 12 m. Depending on the air diffusion design, the air-jet of either horizontal or vertical, can be manually adjusted, or by an electrical servomotor, or automatically adjusted by the air temperature through a self actuated thermostatic actuator. The diffuser consists of a connection piece with a rubber gasket seal and an inner and outer diffuser ring assembly. Depending on the operating mode, these create a vertical (heating) or horizontal (cooling) airflow.Versions:– Manual adjustment with a locking mechanism– Motorized, 2-point/3-point, 230V AC (Belimo motor).– Motorized, 24 V Belimo motor with 0–10V control signal– Autonomous – Self driven thermal adjustment actuator.DesignThe diffuser is made of powder-coated sheet steel (Signal white, RAL9003mat) and is available in duct connection sizes Ø250, Ø315, Ø400, Ø500, and Ø630 mm. At the base section of the diffuser, two double-segmented louvers or slotted surfaces can open to more than 60% of the entire surface. Installation: The diffuser can be installed directly into a circular rigid spiral duct. The standard rubber gasket seal ensures a tight connection. - Size: 250- Type of control: Manual control- Surface finish: Signal white (RAL9003)