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VDW

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

RFD-SIRIUS

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

Nominal sizes RFD: 160, 200, 250, 315 and 400
Nominal sizes SIRIUS: 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

TDV-SilentAIR

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

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

TDF-SilentAIR

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

AK-Uni

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

XARTO

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

Optional equipment and accessories

Exposed diffuser face available in RAL Classic colours

DCS

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

VDL

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

RFD

Circular and square ceiling swirl diffusers

Nominal sizes 125, 160, 200, 250, 315, 400
Volume flow rate range 4 – 330 l/s or 14 – 1188 m³/h
Diffuser face made of galvanised sheet steel, powder-coated, or of aluminium (depending on variant)
For supply and extract air
For constant and variable 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 0.9 m (centre line to centre line)
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
Shallow plenum box

AIRNAMIC

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

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

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Вихревые диффузоры

ПОДБОР ОБОРУДОВАНИЯ

VDW

RFD-SIRIUS

TDV-SilentAIR

VD

TDF-SilentAIR

AK-Uni

XARTO

DCS

VDL

RFD

AIRNAMIC

FD

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