Round/oval duct air diffusers

Duct air diffusers for open ceilings

Linear duct air diffusers in visible installation combine air routing and air supply in one system.

 

  • Ventilate
An der Decke montierte RRA Luftdurchlässe.
An der Decke montierte RRA Luftdurchlässe.

Hydraulic balancing during the planning phase

Our in-house design software for duct air diffusers verifies the hydraulic balancing of the system already during the planning phase. The required balancing elements are factory-installed. In this way, we ensure that the air reliably reaches where it is needed.

Rapid reduction of temperature and air velocity in cooling mode

The linear round/oval duct air diffusers RRA and ORA generate a highly inductive horizontal air stream in cooling mode. This means that the discharged air is quickly mixed with the room air. As a result, temperature differences and high air velocities are reduced rapidly.

Our products

RRA

  • Ventilate
RRA is a linear diffuser in a round shape that combines both air routing and air supply in one system. It is designed for visible installation in open ceiling areas.

ORA

  • Ventilate
ORA is a linear diffuser with an oval design that combines air guidance and air outlet in one system. Thanks to its compact design, ORA is ideal for projects with limited ceiling height, such as revitalization or renovation of existing buildings.

Model sizes

The duct air diffusers are available in different lengths, diameters and slot rows and allow flexible adaptation to different room concepts.

Application areas

The RRA and ORA are used in both comfort and industrial applications, e.g. in industrial halls, laboratories or in quality assurance.

Round and oval duct air diffusers for flexible room design

The round and oval duct air diffusers together form a continuous system that combines functional air routing with a clear and uniform design.
 
In the RRA round duct system, slot rails mounted in the axial direction and color-coordinated system components ensure a uniform appearance that integrates harmoniously into the room design. Different nominal diameters, numbers of slots, colors and system components enable flexible planning.

The ORA oval duct version complements the system for applications with limited ceiling height. It has an equivalent hydraulic cross-section to standard round duct nominal diameters. Slot rows can be arranged both in the flat area and in the rounded side surfaces, thus enabling air routing adapted to the respective room situation.

Fittings from a single source

We supply the entire pipe system including all accessories such as straight ducts, bends, branches, reducers and sleeves in a uniform appearance.

Easy installation and maintenance

The round and oval duct air diffusers RRA and ORA serve as both an air outlet and a duct system. They can be installed both horizontally and vertically and used at different points in the air routing system.

Integrated suspension points facilitate installation. Easily accessible inspection openings ensure that maintenance work can be carried out quickly and easily.

Integrated eccentric rollers

Thanks to the integrated eccentric rollers, the air stream direction can be flexibly adapted to the architectural conditions – even during operation. Depending on the setting, different airflow patterns are possible:

  • Vertical air stream for large penetration depths into the room
  • One-sided air stream for the targeted flow around obstacles or for low ceiling heights
  • Two-sided air stream for wide-area air distribution

Selection options

Adapt the product to your requirements these options are available for selection.

Diameter

DN 150 to DN 900 (RRA)
8 heights, 52 widths (ORA)

Slot rows

1 to 14 slot rows (RRA)
up to 36 slots possible (ORA)

Color variants

available in a wide range of colors

Product finder

With our free calculation program you can find the product with the right performance data for your project in just a few steps. You can then download the official technical data sheet with your individual project values as a PDF .

Calculate product

Project solutions

An der Decke montierte RRA Luftdurchlässe.

Lichtenfels

Concept Laser

Lichtenfels

Concept Laser

  • Construction of a new production hall and an administration building
  • Katherm QK
  • KaCool D AF
  • KaCool D HY
  • ProtecTor
  • RRA
#trench technology
#door air curtains
#Fan Coils
#diffusers
Ein in einem Seminarraum eingebautes Heiz- und Kühldeckensystem GK50WT und Rundrohrluftdurchlässe RRA in Kombination mit gelochten Gipskartonplatten.

Plochingen

Volksbank branch

Plochingen

Volksbank branch

  • New construction of office and event spaces
  • 238 m² GK50WT
  • 409 m² MDCU
  • RRA
  • 9 x Katherm NK (in various versions with 6 mitred corners)
#Diffusers
#Trench technology
#Heating and cooling ceiling systems
Ein eingesetzter Luftdurchlass RRA.

Eindhoven

DomusDela

Eindhoven

DomusDela

  • Conversion and renovation of a church complex
  • 26 x RRA 
#Diffusers
#RRA
Ein an der Decke montierter Luftdurchlass ORA.

Erlangen

L'Osteria

Erlangen

L'Osteria

  • New branch of the successful restaurant chain
  • ORA
#diffusers
Im Lokal eingesetzter Luftdurchlass RRA.

Lingen (Ems)

Hofbräu at Wilhelmshöhe

Lingen (Ems)

Hofbräu at Wilhelmshöhe

  • Ventilation of the dining area
  • AHU unit
  • SAL
  • RRA
#diffusers
#AHU units

Downloads

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