The RICKARD Constant Volume Fixed Vane Radial Diffuser (Type RCD) is primarily intended for buildings where good air mixing is required. They are ideal for installations with ceiling voids in excess of 3.0m and where improved occupant comfort is called for in cooling modes. Due to their ability to achieve a rapidly spreading swirl throw pattern with fast velocity decay and high induction rates, these diffusers are best suited to provide high air volume flow rates without drafts at occupant levels. They create a conical swirl flow pattern for excellent mixing in cooling.

The RICKARD Constant Volume Radial Vane Diffuser with adjustable flow (Type RVD) is primarily intended for buildings where good air mixing is required. They are ideal for installations with ceiling voids in excess of 3.8m and where improved occupant comfort is called for in both heating & cooling modes.