Ventmann
PCircle Diffuser
Perfecting airflow through innovative design, exceptional comfort, and style.
See the Difference
Seamless LINE Diffusers vs. Outdated
Ventmann PCircle 2 Slots Diffuser
Coanda Effect
Ventmann’s PCircle Coanda delivers exceptional comfort through precise airflow, combining sustainability, performance, and design. Its unique form resolves the challenge of achieving the Coanda effect in supply air diffusers while meeting architects’ and designers’ aesthetic demands.
HOW COANDA EFFECT WORKS
INNOVATIVE CIRCULAR DESIGN
The PCIRCLE diffuser cap is equipped with our advanced Click system, designed for fast, precise, and hassle-free installation. This upgraded mechanism not only streamlines setup but also delivers environmental advantages and performs reliably across a broader temperature range than the older magnetic system. As the most adaptable unit in our collection, the PCIRCLE integrates effortlessly into a wide variety of interiors while ensuring superior air distribution. Like all frameless diffusers in our portfolio, it supports both air supply and extraction, enabling multiple installations in the same space without compromising on visual harmony.
Staying true to our sustainability values, the PCIRCLE Coanda is crafted from a proprietary gypsum-composite material. This eco-conscious choice significantly reduces embodied carbon compared to conventional aluminum or plastic options. The gypsum build also makes it plaster-and-paint friendly, blending seamlessly with surrounding surfaces. When paired with the frameless mounting system, the result is a discreet, near-invisible installation that delivers uncompromising performance.
To accommodate different project requirements, all standard PCIRCLE models are fully customizable:
– smallest standard diameters
– medium diameter option
– airflow up to 200 m³/h
– for increased air capacity
– largest standard diameter
– airflow up to 300 m³/h
– for maximum air delivery needs
PCIRCLE PRODUCT GALLERY
VENTMANN Performance
Discover our Performance Line
ABOUT PCIRCLE MODELS
- The Performance Circle diffuser is Ventmann’s most adaptable and best-selling model, offering a frameless design that integrates effortlessly into any interior style. Recognized with a 2023 Red Dot Design Award nomination, this model combines visual elegance with exceptional performance.
- Engineered to deliver optimal comfort, it features a precision airflow pattern that leverages the Coanda effect—solving the industry challenge of balancing complex airflow physics with the refined aesthetic standards of architects and designers.
Specifications:
- 1-slot or 2-slot configurations
- 100 mm / 125 mm, 160 mm, and 200 mm
- Airflow Capacity:
- 160 mm (1-slot): up to 200 m³/h
- 200 mm (1-slot): up to 300 m³/h
Sustainable, high-performing, and architecturally versatile, the Performance Circle is the diffuser of choice for design-conscious HVAC projects.
Step 1
Line Diffuser Installation Instructions
Pre-position the ventilation duct in the ceiling
void, above, through, or alongside the ceiling
joists. If required, purchase reducer(s) to suit
the size of duct and spigots (by others).
Step 2
Fit temporary batons with plasterboard
spacers that are the same thickness as the
final ceiling plasterboard sheet. Where metal
plasterboard rails are employed, suitable self
tapping screws will be required.
Step 3
Fit pre-assembled* diffuser, plenum box and
spigot(s) on top of temporary batons. Note
that spigot (by others) is surface mounted on
plenum using self-tapping screws and
silicone.
*Using screws provided
Step 4
Fix plenum to upper surface using proprietary
fixings (Unistrut etc) (by others). Fix to
plenum with self-tapping screws. Adjust
height of the plenum so that the face of the
diffuser just touches the top of the batons.
Step 5
Remove temporary batons and plasterboard
spacers. Measure and cut the hole in the
main plasterboard sheet. Lift the
plasterboard sheet to meet the diffuser and
fix in place as normal using plasterboard
screws.
Step 6
From the underside, use a jointing compound
to fill the gap between diffuser and
plasterboard. If required, move magnetic
blocks to desired length and fix in place using
jointing compound. Sand and paint.
Packaging Crush Test
Proven strength: Our packaging protects your diffuser – even after heavy impact.
Related Blog Posts
What Is a Linear Diffuser? Everything You Need to Know
In modern interior design and HVAC (Heating, Ventilation, and Air Conditioning) systems, linear diffusers have emerged as a go-to solution for spaces that demand both style and functionality.
Air Ventilation Grilles: Elegant Design Meets Engineering Performance
In today’s built environments, maintaining excellent indoor air quality is essential for health, comfort and regulatory compliance.
Plaster Air Vents: The Ultimate Guide by Ventmann
Plaster air vents are flush-mounted ventilation grilles designed to blend seamlessly into walls or ceilings that are finished with plaster. Unlike traditional bulky plastic or metal grilles, plaster air vents ...