Ceiling Diffusers

AKR

CIRCULAR PLENUM BOX FOR UNIVERSAL CONNECTION OF SWIRL DIFFUSERS TYPE VDW, FD, TDF, AIRNAMIC AND XARTO

Standard plenum box for supply air and extract air for circular diffuser faces and for the XARTO type

Plenum box made of galvanised sheet steel with plastic spigot and equalising element made of polyester fleece
Mounting aid for faster and tool-free assembly of the diffuser face
3 suspension lugs for fixing, alternatively a central single-point suspension can be used
For all types of ceiling systems
Equalising element for optimum and therefore quieter flow through the diffuser face with supply air
For comfort zones and industrial zones
Very airtight casing

Optional equipment and accessories

Spigot with damper unit for volume flow rate balancing and lip seal
Internal lining
Powder coating, RAL CLASSIC colour

AIRNAMIC

FOR THE MOST DEMANDING REQUIREMENTS OF TECHNICAL FUNCTION, COMFORT, AND DESIGN

Circular and square ceiling swirl diffusers with fixed air control blades, for high volume flow rates at low sound power levels and low differential pressure due to innovative polymer technology

Nominal sizes 160, 250, 300, 400, 600, 625
Volume flow rate range 5 – 385 l/s or 16 – 1386 m³/h
Plastic diffuser face with overlapping, three-dimensionally contoured blades, for the most efficient swirl and high induction
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
Diffuser face with gently sloped, flat border – only 3 mm high
Plenum box with acoustically optimised and lockable damper blade
Spigot for nominal sizes 160 and 250 allows for quick, simple and direct connection to the ductwork
Diffuser face with bayonet fixing (no tools required) available for nominal size 160 or 250 and with a spigot

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours

RFD

WITH LOW SOUND POWER LEVEL FOR COMFORT AND INDUSTRIAL ZONES, WITH FIXED AIR CONTROL BLADES

Circular and square ceiling swirl diffusers

Nominal sizes 5, 6, 8, 10, 12, 16 in
Volume flow rate range 8.2 – 770 cfm
Diffuser face made of galvanised sheet steel, powder-coated, or of aluminium (depending on variant)
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems
With discharge nozzle ideal for cooling in case of freely suspended installation
High induction results in a rapid reduction of the temperature difference and airflow velocity
Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 3 ft (center line to center line)
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colors
Horizontal or vertical duct connection
Plenum box with cord-operated damper blade and pressure tap
Shallow plenum box

TDF-SILENTAIR

WITH VERY LOW SOUND POWER LEVEL FOR COMFORT ZONES, WITH FIXED AIR CONTROL BLADES

Circular and square ceiling swirl diffusers

Nominal sizes 300, 400, 500, 600, 625
Volume flow rate range 10 – 265 l/s or 36 – 954 m³/h
Diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
High induction results in a rapid reduction of the temperature difference and airflow velocity
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL Classic colours
Horizontal or vertical duct connection
Plenum box with cord-operated damper blade and pressure tap

FD

FOR COMFORT ZONES, WITH FIXED AIR CONTROL BLADES

Circular and square ceiling swirl diffusers that create high induction levels, for high room air change rates

Nominal sizes 300, 400, 500, 600, 625
Volume flow rate range 9 – 235 l/s or 31 – 846 m³/h
Diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
High induction results in a rapid reduction of the temperature difference and airflow velocity
Very high room air change rate possible thanks to row arrangement with a minimum pitch distance of 0.9 m
Ideal for comfort zones
Circular diffuser faces can be easily mounted without tools in a circular plenum box with horizontal spigot

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Square plenum box with cord-operated damper unit and pressure tap

VDW

WITH LOW SOUND POWER LEVEL FOR COMFORT ZONES, WITH INDIVIDUALLY MANUALLY ADJUSTABLE AIR CONTROL BLADES

Circular and square ceiling swirl diffusers for high room air change rates

Nominal sizes 300, 400, 500, 600, 625, 825
Volume flow rate range 7 – 470 l/s or 25 – 1692 m³/h
Diffuser face made of galvanised sheet steel, powder-coated
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
High induction results in a rapid reduction of the temperature difference and airflow velocity
Very high room air change rate due to row arrangement with a minimum pitch distance of 0.9 m
Ideal for comfort zones
Circular diffuser faces can be easily mounted without tools in a circular plenum box with horizontal spigot

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours, air control blades in black or white
Horizontal or vertical duct connection
Square plenum box with cord-operated damper unit and pressure tap

VDL

FOR HIGH ROOMS, WITH ADJUSTABLE AIR CONTROL BLADES

Circular ceiling swirl diffusers, with manual or motorised adjustment of the air pattern to ensure draught-free ventilation of the occupied zone both in heating and cooling modes

Nominal sizes 315, 400, 630, 800
Volume flow rate range 65 – 1080 l/s or 234 – 3888 m³/h
Diffuser face made of galvanised, powder-coated sheet steel and of aluminium
For supply air
For variable and constant volume flows
High induction results in a rapid reduction of the temperature difference and airflow velocity
Discharge direction can be adjusted manually or with an actuator
Diffuser face with aerodynamically optimised contours
Ideal for high rooms

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
An extended border improves the horizontal air discharge in cooling mode
Protective cage for use in gymnasiums
Actuators for adjusting the air discharge direction
Diffuser face can be removed from the room side

TID

NON-VISIBLE AIR TERMINAL DEVICE FOR COMBINATION WITH FINELY PERFORATED STANDARD METAL CEILING TILES

These swirl diffusers allow for a seamless ceiling appearance without any visual interruptions

Invisible due to the black coated functional unit located on the rear of the diffuser face or ceiling tile
Flexible combination options with various perforated standard metal ceiling tiles or a factory-made perforated plate diffuser face
Maximum comfort due to swirling air distribution, swift reduction of supply air velocities and temperature differences
Easy installation, with either plenum box or direct air connection

XARTO

FOR MORE REFINED COMFORT ZONES WITH SPECIAL DEMANDS ON ARCHITECTURE AND DESIGN, WITH FIXED AIR CONTROL BLADES

Circular and square ceiling swirl diffusers for high volume flow rates at low sound power levels and low differential pressure

Nominal sizes 600, 625
Volume flow rate range 31 – 265 l/s or 110 – 954 m³/h
Diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
Swirl unit inside for the best swirl effect and high induction levels
Plenum box with acoustically optimised and lockable damper blade
Ideal for comfort zones

DLQ

FOR FOUR-WAY HORIZONTAL SUPPLY AIR DISCHARGE, WITH FIXED AIR CONTROL BLADES – SHEET STEEL DIFFUSER FACE

Square ceiling diffusers

Nominal sizes 250, 300, 400, 500, 600, 625
Volume flow rate range 20 – 700 l/s or 72 – 2520 m³/h
Square diffuser face
Diffuser face made of sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems
High induction results in a rapid reduction of the temperature difference and airflow velocity

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Blanking plates for adjusting the discharge direction
Duct cross bar for installation without plenum box
Plenum box with cord-operated damper blade and pressure tap

ADLR

FOR HORIZONTAL RADIAL SUPPLY AIR DISCHARGE, WITH FIXED AIR CONTROL BLADES – ALUMINIUM DIFFUSER FACE

Circular and square ceiling diffusers for radial air discharge, for high comfort levels, ideal integration into suspended ceilings

Nominal sizes 1, 2, 3, 4, 5, 6, 7, 8
Volume flow rate range 20 – 650 l/s or 72 – 2340 m³/h
Circular or square diffuser face
Diffuser face made of aluminium with anodised finish
For supply and extract air
For variable and constant volume flows
For suspended continuous plasterboard or grid ceilings
High induction results in a rapid reduction of the temperature difference and airflow velocity

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Plenum box with cord-operated damper blade and pressure tap

TDV-SILENTAIR

WITH VERY LOW SOUND POWER LEVEL FOR COMFORT ZONES AND INDIVIDUALLY MANUALLY ADJUSTABLE AIR CONTROL BLADES

Circular and square ceiling swirl diffusers

Nominal sizes 12, 16, 20, 24 in
Volume flow rate range 23 – 627 cfm
Diffuser face made of galvanized sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
High induction results in a rapid reduction of the temperature difference and airflow velocity
Air control blades can be adjusted individually for adjusting the air pattern
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colors, air control blades in black or white
Horizontal or vertical duct connection
Plenum box with cord-operated damper blade and pressure tap

RFD-SIRIUS

RFD-SIRIUS IS AN AIR TERMINAL DEVICE COMBINED WITH A VAV TERMINAL UNIT

RFD-SIRIUS is used in ventilation and air conditioning systems for the demand-based volume flow control and as an air terminal device.

RFD nominal sizes: 160, 200, 250, 315 and 400
SIRIUS nominal sizes: 125, 160, 200 and 250
Volume flow rate range: 4.7 to 171.3 l/s or 17 to 617 m³/h
For supply air
Flush ceiling installation, with discharge nozzle also suspended installation
Control input signal via MP bus, LonWorks FTT-10A, Modbus RTU, or analogue signal
Integral noise insulation element
High induction results in a rapid reduction of the temperature difference and airflow velocity
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours

VD

FOR HIGH ROOMS, WITH ADJUSTABLE AIR CONTROL BLADES

Square ceiling swirl diffusers, with manual or motorised adjustment of the air pattern to ensure draught-free ventilation of the occupied zone both in heating and cooling modes

Nominal sizes 425, 600, 775, 1050
Volume flow rate range 95 – 1490 l/s or 342 – 5364 m³/h
Diffuser face made of aluminium with anodised finish
For supply air
For variable and constant volume flows
High induction results in a rapid reduction of the temperature difference and airflow velocity
Discharge direction can be adjusted manually or with an actuator
Ideal for high rooms

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
An extended border improves the horizontal air discharge in cooling mode
Protective cage for use in gymnasiums
Actuators for adjusting the air discharge direction

ADLQ

FOR FOUR-WAY HORIZONTAL SUPPLY AIR DISCHARGE, WITH FIXED AIR CONTROL BLADES – ALUMINIUM DIFFUSER FACE

Square ceiling diffusers

Nominal sizes 250, 300, 400, 500, 600, 625
Volume flow rate range 20 – 665 l/s or 72 – 2394 m³/h
Square diffuser face
Diffuser face made of aluminium with anodised finish
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems
High induction results in a rapid reduction of the temperature difference and airflow velocity

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Blanking plates for adjusting the discharge direction
Duct cross bar for installation without plenum box
Plenum box with cord-operated damper blade and pressure tap

DLQL

FOR HORIZONTAL ONE-WAY TO FOUR-WAY AIR DISCHARGE, FOR COMFORT ZONES, WITH FIXED BAFFLE ELEMENT

Square ceiling diffusers

Nominal sizes 250, 300, 400, 500, 600
Volume flow rate range 6 – 285 l/s or 22 – 1026 m³/h
Square diffuser face
Diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems
Perforated diffuser face with special baffle element for horizontal air discharge and high induction levels

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Blanking plates for adjusting the discharge direction
Plenum box with damper blade

VDR

FOR LARGE TEMPERATURE DIFFERENCES IN HEATING MODE, HIGH PENETRATION OF AIR, WITH ADJUSTABLE AIR CONTROL BLADES

Circular ceiling diffusers, with manual or motorised adjustment of the air discharge direction, particularly suitable for high rooms

Nominal sizes 315, 400, 630, 800
Volume flow rate range 175 – 1495 l/s or 630 – 5382 m³/h
Diffuser face made of aluminium
For supply air
For variable and constant volume flows
Discharge direction can be adjusted manually or with an actuator
High penetration of air at low sound power level

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Actuators for adjusting the air discharge direction

DLQ-AK

FOR HORIZONTAL ONE-WAY TO FOUR-WAY SUPPLY AIR DISCHARGE, WITH FIXED AIR CONTROL BLADES – SHEET STEEL DIFFUSER FACE

Square ceiling diffusers

Nominal sizes 300, 400, 500, 600, 625
Volume flow rate range 40 – 565 l/s or 144 – 2034 m³/h
Square diffuser face
Diffuser face made of galvanised sheet steel, powder-coated
For supply air
For variable and constant volume flows
For all types of ceiling systems
High induction results in a rapid reduction of the temperature difference and airflow velocity

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal duct connection
Plenum box with damper blade

DCS

FOR HORIZONTAL SWIRLING SUPPLY AIR DISCHARGE CREATING HIGH INDUCTION LEVELS, WITH FIXED AIR CONTROL BLADES

Square ceiling swirl diffusers with perforated face plate, for comfort and industrial zones

Nominal sizes 600, 625
Volume flow rate range 4 – 260 l/s or 16 – 936 m³/h
Perforated diffuser face made of galvanised sheet steel, powder-coated
For supply and extract air
For variable and constant volume flows
For all types of ceiling systems, particularly for T-bar ceilings
Swirl unit inside, 6 sizes, for the best swirl effect and high induction levels
Ideal for comfort zones

Optional equipment and accessories

Exposed diffuser face available in RAL CLASSIC colours
Horizontal or vertical duct connection
Plenum box with lining

AK-UNI

SQUARE PLENUM BOX FOR UNIVERSAL CONNECTION OF CEILING DIFFUSERS TYPE VDW, TDV, RFD, FD, TDF, TID, ADLQ, DLQ, ADLR, DLQL

Standard plenum box for supply and extract air for square diffuser faces and for all type TDV, RFD, TID, ADLQ, DLQ, ADLR and DLQL diffusers.

Plenum box made of galvanised sheet steel
For all types of ceiling systems
Horizontal duct connection
Permanent equalising element that ensures an optimum airflow through the diffuser face (supply air variant)
For comfort zones and industrial zones

Optional equipment and accessories

Damper unit for volume flow rate balancing
Pressure tap and cord-operated damper blade for volume flow rate balancing
Lip seal

ATVC100

Automatic exhaust valves type ATVC-100 are suitable for installations in multi-storey residential buildings, office blocks, hotels, schools etc., with a central exhaust air system. ATVC-100 can be installed either in new or renovated buildings.

LVS

FOR EXTRACT AIR

Circular disc valves with manually adjustable annular gap

Nominal sizes 100, 125, 160, 200 mm
Volume flow rate range 10 – 50 l/s or 36 – 180 m³/h
Diffuser face made of formed sheet steel, powder-coated
For variable and constant volume flows
For ceiling and wall installation
Easy to install
Volume flow rate balancing by simply turning the valve disc
Inexpensive solution for small rooms

Z-LVS

FOR SUPPLY AIR

Circular disc valves with manually adjustable annular gap

Nominal sizes 100, 125, 160, 200 mm
Volume flow rate range 10 – 90 l/s or 36 – 324 m³/h
Diffuser face made of formed sheet steel, powder-coated
For variable and constant volume flows
For ceiling and wall installation
Easy to install
Volume flow rate balancing by simply turning the valve disc
Inexpensive solution for small rooms

PROCONDIF® TYPE PCD

Applications
Modern systems using “soft” cooling methods (e.g. adiabatic cooling), Laboratories, Passage zones in airports, Exhibition halls, Shopping centres, Control bays, Foyers, corridors, Clean rooms, Fan coil units with ceiling outlets.

Description
The development of the PROCONDIF® system lead to realisation of air diffusion from above with characteristics of displacement ventilation.
The PROCONDIF® method is based on a controlled velocity profile at the outlet and means:
PROFILE CONTROLLED DIFFUSION.
The honeycomb structure of high porosity modulates the outflow according to the specific jet performance required.

Ceiling Diffusers