Performance Circle model, our most versatile and popular unit, is a frameless diffuser that adapts seamlessly to any room or interior design style. This innovative design earned a prestigious Red Dot Design Award nomination in 2023. The product delivers exceptional comfort through its specialized airflow pattern, while embodying the core Ventmann principles of sustainability, performance, and aesthetic versatility. The Circle Coanda’s design successfully addresses a fundamental challenge in the industry: reconciling the physics required for creating the Coanda effect with the stringent aesthetic demands of designers and architects.Our CIRCLE diffuser is suitable for plasterboard ceilings or walls.
All PCIRCLE standard models can be adapted to meet specific needs:
- 100mm or 125mm connection nozzles represent the smallest standard diameters
- 160mm connection nozzle provides a medium diameter option
- Single slot configuration for airflow up to 200 m³/h
- Dual slot configuration for higher air capacity requirements
- 200mm connection nozzle offers the largest standard diameter
- Single slot configuration for airflow up to 300 m³/h
- Dual slot configuration for higher air capacity requirements
See the Difference —
Seamless CIRCLE Diffusers vs. Outdated
HOW COANDA EFFECT WORKS
The product features a specific airflow that offers exceptional comfort. It also provides the sustainability, performance, and aesthetic versatility that are hallmarks of every Ventmann product. The PCircle Coanda’s design solves a specific challenge where the physics of creating air diffusers that produce a Coanda effect were at odds with the aesthetic requirements of designers and architects. This challenge has proved particularly difficult to solve in air diffusers that supply air, as opposed to those that simply extract it.
Modern buildings require high quality air supply and extraction. Occupants don’t expect to feel strong jets of air or currents, but a high amount of air still needs to be circulated according to modern building standards. Standard diffusers blow out air in spikes, with the airflow forming a shape like that of a torch light.
But, air diffusers that create a Coanda effect can supply a very high volume of air without users feeling it. The Coanda effect occurs when a jet of air or fluid wraps around and then follows the contours of a convex surface. In air diffusers, the effect causes the airflow to spread parallel to the ceiling rather than downwards in jets. This means if you are standing directly underneath the diffuser, you still won’t feel the direct jet of air – making it much more comfortable for users.
Because of the physics of creating the Coanda effect, it is difficult to have diffusers with the sharp 90° edges architects are looking for. But, we have achieved this by offering a frameless design, a gypsum-based product that can be plastered over and painted, seamlessly integrating with any interior design while maintaining optimal air distribution performance.
Technical parameters
