Type 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 300, 400, 500, 600, 625
  • Volume flow rate range 11 – 315 l/s or 40 – 1134 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
  • 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 colours, air control blades in black or white
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap
  • Acoustically optimised plenum box FLEXTRO

TDV-SA-Q-Z/600 00132911_0
  • Application
  • Description

Application

  • Type TDV-SilentAIR ceiling swirl diffusers are used as supply air or extract air diffusers for comfort zones
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • Horizontal swirling supply air discharge for mixed flow ventilation
  • The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant)
  • Individually adjustable air control elements to meet individual local requirements
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For all types of ceiling systems
  • With an extended border also suitable for freely suspended installation (supply air variant)

Special characteristics

  • Very low sound power level, ideal for comfort zones
  • Individually manually adjustable air control blades
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Black or white air control blades

Nominal sizes

  • 300, 400, 500, 600, 625

Variants

  • TDV-SA-Q: Square diffuser face
  • TDV-SA-R: Circular diffuser face
  • TDV-SA-*-Z: Supply air
  • TDV-SA-*-A: Extract air


Connection

  • H: Horizontal duct connection
  • V: Vertical duct connection
  • X: Flexible plenum box FLEXTRO

Parts and characteristics

  • Circular or square diffuser face
  • Diffuser face with individually manually adjustable air control blades
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)

Attachments

  • M: Damper blade for volume flow rate balancing
  • MN: Pressure tap and cord-operated damper blade for volume flow rate balancing with the diffuser face in place

Accessories

  • Lip seal

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

  • Grille face made of galvanised sheet steel
  • V, H: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Lip seal made of rubber
  • Exposed diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control blades for supply air similar to RAL 9005, black; extract air variant without air control blades
  • Q11: Air control blades for extract air similar to RAL 9005, black
  • Q21: Air control blades for supply air and extract air similar to RAL 9010, white

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Technical information

  • Function
  • Technology
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration of the TDV-SA, with plenum box for horizontal duct connection 00128127_0

A TDV-SA-Q
B TDV-SA-R
① Diffuser face
② Central fixing screw
③ Adjustable air control blades
④ Plenum box
⑤ Cross bar
⑥ Suspension hole
⑦ Spigot
Optional
⑧ Lip seal
⑨ Damper blade for volume flow rate balancing
⑩ Pressure tap
⑪ Green cord for closing the damper blade
⑫ White cord for opening the damper blade
⑬ Measuring tube
⑭ Text label indicating plenum box variant

Functional description

Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type TDV ceiling swirl diffusers have adjustable air control blades. The air pattern can be adjusted to meet different local requirements. Horizontal air discharge is one-way, two-way or omni directional. Vertical air discharge is possible but only for heating. The supply air to room air temperature difference may range from –12 to +10 K.

A damper blade (optional) simplifies volume flow rate balancing for commissioning. Pressure tap and cord-operated damper blade (optional) allow for volume flow rate balancing with the diffuser face in place.

To give rooms an aesthetic, uniform look, Type TDV diffusers may also be used for extract air. Air control blades are not required for extract air applications.

Nominal sizes300, 400, 500, 600, 625 mm
Minimum volume flow rate, with ΔtZ = –6 K 11 – 47 l/s or 40 – 169 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)95 – 315 l/s or 342 – 1134 m³/h
Supply air to room air temperature difference–12 to +10 K


Quick sizing – sound power level and total differential pressure

Nominal size V Damper blade position
Nominal size V 45°90°
Nominal size V ΔptLWAΔptLWAΔptLWA
Nominal size l/s m³/h PadB(A)PadB(A)PadB(A)
300 11 40 1<151<152<15
300 40 144 112514273225
300 65 234 283737378338
300 95 342 6050794817952
400 20 72 1<151<153<15
400 60 216 102612182827
400 100 360 263935367939
400 140 504 5250684915449
500 30 108 1<152<156<15
500 80 288 112216214626
500 135 486 3038463813043
500 190 684 5950915125755
600, 625 47 169 2<152<156<15
600, 625 125 450 122215224427
600, 625 200 720 3038393711243
600, 625 275 990 5750744921255


Quick sizing – sound power level and total differential pressure

Nominal size V Damper blade position
Nominal size V 45°90°
Nominal size V ΔptLWAΔptLWAΔptLWA
Nominal size l/s m³/h PadB(A)PadB(A)PadB(A)
300 11 40 1<151<152<15
300 40 144 102514243223
300 70 252 313543369738
300 111 398 78501085024354
400 20 72 1<151<153<15
400 65 234 112514253425
400 115 414 3439453910541
400 155 558 6250824819151
500 30 108 1<152<156<15
500 90 324 132220235628
500 155 558 3938594016545
500 215 774 75501145231857
600, 625 47 169 2<152<156<15
600, 625 130 468 132119224730
600, 625 215 774 3537513813045
600, 625 295 1062 6650965024457


Quick sizing – sound power level and total differential pressure

Nominal size V Damper blade position
Nominal size V 45°90°
Nominal size V ΔptLWAΔptLWAΔptLWA
Nominal size l/s m³/h PadB(A)PadB(A)PadB(A)
300 11 40 1<151<152<15
300 30 108 6178191718
300 65 234 293736388238
300 95 342 6350775117452
400 20 72 1<151<153<15
400 60 216 92112232922
400 110 396 313940399642
400 150 540 5850735117954
500 30 108 1<152<156<15
500 85 306 112018234929
500 140 504 3038494213346
500 195 702 5950945625858
600, 625 47 169 2<153<157<15
600, 625 120 432 122317254233
600, 625 190 684 2938424210648
600, 625 260 936 5550795519860


Quick sizing – sound power level and total differential pressure

Nominal sizeVDamper blade position
Nominal sizeV45°90°
Nominal sizeVΔptLWAΔptLWAΔptLWA
Nominal sizel/sm³/hPadB(A)PadB(A)PadB(A)
600, 625 47 169 2<154<157<15
600, 625 135 486 182129265431
600, 625 225 810 5038824314947
600, 625 315 1134 98501605529258


Ceiling swirl diffusers with square or circular diffuser face. Supply air and extract air variants for comfort zones. Diffuser face with individually manually adjustable air control blades for horizontal swirling supply air discharge creating high induction levels. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face with radially arranged, individually adjustable black or white air control blades, and of a plenum box, equalising element (only supply air variants), side entry or top entry spigot, and suspension holes or suspension lugs.

The diffuser face is fixed to the cross bar with a central screw, concealed by a decorative cap.

Spigot suitable for ducts to EN 1506 or EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Very low sound power level, ideal for comfort zones
  • Individually manually adjustable air control blades
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Black or white air control blades

Materials and surfaces

  • Grille face made of galvanised sheet steel
  • V, H: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Lip seal made of rubber
  • Exposed diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control blades for supply air similar to RAL 9005, black; extract air variant without air control blades
  • Q11: Air control blades for extract air similar to RAL 9005, black
  • Q21: Air control blades for supply air and extract air similar to RAL 9010, white

Technical data

  • Nominal sizes: 300, 400, 500, 600, 625 mm
  • Minimum volume flow rate, with ΔtZ = –6 K: 11 – 47 l/s or 40 – 169 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 95 – 315 l/s or 342 – 1134 m³/h
  • Supply air to room air temperature difference: –12 to +10 K

00133892_0

 Type
TDV-SA       Swirl diffuser

 Construction style
R       Circular
Q       Square

 System
Z       Supply air
A       Extract air

 Connection
H       Horizontal
V       Vertical

 Damper blade for volume flow rate balancing
       No entry: without damper blade
M       With damper blade
MN       With cords and pressure tap (only for connection H)

 

 Accessories
       No entry: without accessories
L       With lip seal

 Nominal size [mm]
300
400
500
600
625

 Colour of air control elements
No entry: supply air – black air control blades, extract air – no air control blades
Q11       Extract air – black air control blades
Q21       Supply air – white air control blades
       Extract air – white air control blades

 Exposed surface
       No entry: powder-coated RAL 9010, pure white
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

 

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Thank you for your message!

Visual contact Visual contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265