Type  VSD35

Numerous variants for many different installation situations

Slot diffusers with 35 mm diffuser face (nominal width) and adjustable air control elements

  • Nominal length from 600 to 1950 mm, 1 or 4 slots
  • Volume flow rate range 15 – 135 (l/s)/m or 54 – 486 (m³/h)/m
  • Diffuser face made of extruded aluminium sections
  • For variable and constant volume flows
  • Suitable for continuous linear arrangement
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Individually adjustable air control elements to meet individual local requirements


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Diffuser face with extended border
  • Damper blade for volume flow rate balancing, can be adjusted through the diffuser face
  • Concealed screw fixing that simplifies installation of the diffuser after the ceiling has been completed
  • Symmetric and asymmetric plenum boxes, with or without lining
  • End plates, end angles, corner sections

VSD35-1-AK 00134729_0
  • Application
  • Description

Application

  • Type VSD35 slot diffusers are used as supply air or extract air devices in comfort zones
  • They blend in inconspicuously with continuous grid ceilings and plasterboard ceilings
  • Air discharge is one-way or alternating horizontal, or alternating angled; turbulent flow (mixed flow ventilation)
  • High induction results in a rapid reduction of the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –10 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For suspended ceilings; suitable for restricted ceiling voids due to the low overall height of the plenum box
  • Suitable for continuous linear arrangement

Special characteristics

  • Individually adjustable air control elements to meet individual local requirements
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Nominal sizes

  • LN: 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
  • Diffuser face available in intermediate sizes from 300 to 2550 mm, in increments of 1 mm

Variants

  • VSD35-*: 1, 2, 3 or 4 slots
  • VSD35-*-F: Diffuser face only
  • VSD35-*-E: Corner section
  • VSD35-...: Diffuser face without extended border
  • VSD35-.../B00: Diffuser face with extended border
  • VSD35-...: Black air control elements
  • VSD35-.../WW: White air control elements


Plenum box and diffuser face fixing

  • AK: Plenum box and clamp fixing
  • DK: Plenum box with lining and clamp fixing
  • AS: Plenum box and concealed screw fixing
  • DS: Plenum box with lining and concealed screw fixing
  • AA: Asymmetric plenum box and clamp fixing

Parts and characteristics

  • Diffuser face with individually adjustable air control elements
  • Plenum box for horizontal duct connection
  • Concealed screw fixing (facilitates installation of the diffuser face) or clamp fixing
  • Connecting pins and alignment plates to connect and align slot diffusers for a continuous linear arrangement

Attachments

  • M: Damper blade for volume flow rate balancing
  • C1, C2: Two end plates
  • C5, C6: Two end angles

Accessories

  • Lip seal

Useful additions

  • EP: Two end plates
  • EW: Two end angles
  • To be ordered separately for continuous linear runs

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

  • Diffuser face made from extruded aluminium sections
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Plenum box made of galvanised sheet steel
  • End plates and end angles made of aluminium
  • Lip seal made of rubber
  • Lining is mineral wool
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • WW: Air control elements similar to RAL 9010, white


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

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 VSD35 with clamp fixing 00128934_0

① Diffuser face
② Adjustable air control element
③ Neck
④ Plenum box
⑤ Suspension lug
⑥ Spigot
Optional
⑦ Lip seal
⑧ Damper blade for volume flow rate balancing
⑨ Clamp fixing

Functional description

Slot diffusers direct the air from air conditioning systems into the room, either horizontally or at an angle. 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. 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 VSD35 slot diffusers have adjustable air control elements. The air pattern can be adjusted to meet different local requirements. Air discharge is one-way or alternating horizontal. Heating mode with angled air discharge is also possible. The supply air to room air temperature difference may range from –10 to +10 K.

A damper blade (optional) simplifies volume flow rate balancing for commissioning.

To give rooms an aesthetic, uniform look, Type VSD35 diffusers may also be used for extract air.

Nominal length600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
Number of slots1, 2, 3, 4
Neck extension0, 30, 55, 80, 104, 105, 129 mm
Minimum volume flow rate15 – 50 (l/s)/m or 54 – 180 (m³/h)/m
Maximum volume flow rate with LWA ≅ 50 dB(A)45 – 135 (l/s)/m or 162 – 486 (m³/h)/m
Supply air to room air temperature difference–10 to +10 K


Quick sizing – sound power level and total differential pressure

Nominal lengthVDamper blade position
Nominal lengthV45°90°
Nominal lengthVD = 98D = 123D = 98D = 123D = 98D = 123
Nominal lengthVΔptLWAΔptLWAΔptLWAΔptLWAΔptLWAΔptLWA
Nominal lengthl/sm³/hPadB(A)PadB(A)PadB(A)PadB(A)PadB(A)PadB(A)
600 7 25 4<154<155<154<158<155<15
600 15 54 172715222327182335272323
600 20 72 303527314135313162364032
600 30 108 6647604491487044139499044
750 10 36 5<155<158<156<1514<158<15
750 20 72 213118273232222753323128
750 25 90 323828344938353483394834
750 35 126 6348554496496844162509445
900 11 40 5<154<159<156<1515<158<15
900 20 72 162813242729182448302625
900 30 108 3540293660413936108425937
900 40 144 634952451065069451925110446
1050 15 54 7196<15141981526191315
1050 25 90 203216283733232871343629
1050 30 108 2937233353383334101395234
1050 45 162 655051451205173462285211647
1200 15 54 6175<1513177<15251812<15
1200 30 108 253518314936283197374832
1200 40 144 4344333987455040172468441
1200 50 180 685051461365278472695313248
1350 20 72 10237182123111942242019
1350 30 108 223316294634253094354530
1350 40 144 3842273782434538167447939
1350 50 180 604842441285070452615112446
1500 20 72 9216<152022111741221918
1500 30 108 203213274433232892344329
1500 40 144 3540243678414136163437637
1500 55 198 654944451485178463095314347
1650 20 72 5174<158176<1514178<15
1650 45 162 253821344039273570403935
1650 50 180 314126375042343886434838
1650 70 252 6052514897536648169549549
1800 25 90 721617122181721221118
1800 40 144 183315293034193053352930
1800 60 216 3945324166464342119476442
1800 70 252 5350444690515946162528847
1950 25 90 620516112071620211117
1950 40 144 163213282833182851342729
1950 50 180 243920344339273580404236
1950 70 252 4749384484505345156518246


Quick sizing – sound power level and total differential pressure

Nominal lengthVDamper blade position
Nominal lengthV45°90°
Nominal lengthVD = 123D = 138D = 123D = 138D = 123D = 138
Nominal lengthVΔptLWAΔptLWAΔptLWAΔptLWAΔptLWAΔptLWA
Nominal lengthl/sm³/hPadB(A)PadB(A)PadB(A)PadB(A)PadB(A)PadB(A)
600 15 54 5<154<157<156<1512<159<15
600 30 108 183117292831232948323530
600 33 120 233421323535293259354433
600 55 198 61495647945077481595111849
750 20 72 617515111781519181416
750 35 126 183216303232253058334131
750 50 180 3742324064435041118448442
750 65 234 625055481085184491995314150
900 25 90 8206181421111828211919
900 40 144 193316303633273171344932
900 55 198 3542304068435140133449242
900 70 252 574948471115082482165214949
1050 25 90 6185161319101727191817
1050 45 162 203416314235313286365833
1050 60 216 35422940754354411524410342
1050 75 270 554945461175084472375216049
1200 30 108 8216191822131937222520
1200 50 180 2235173249363533103376934
1200 70 252 42443442964668432014713444
1200 85 306 6250494814152100492965419751
1350 35 126 10238212324162250253322
1350 55 198 2436183357373934122388035
1350 75 270 444434421054673432264814945
1350 90 324 6250494815252105493265421551
1500 35 126 9227202323152049233221
1500 55 198 2234173255353833120377934
1500 75 270 404331401024470422234614643
1500 95 342 6450494716452112493575423451
1650 40 144 621519112181920211419
1650 65 234 153313312834213253353733
1650 90 324 2943254153444141101457142
1650 115 414 47504148875166491655311550
1800 45 162 7226201323102125241721
1800 70 252 163414323135233360364134
1800 95 342 2943254156444242110457643
1800 120 432 46503948895167491755312050
1950 45 162 621519122292024221720
1950 70 252 153312312934223258354032
1950 95 342 2642223954433940107447341
1950 125 450 45503848935168491855312650


Quick sizing – sound power level and total differential pressure

Nominal lengthVDamper blade position
Nominal lengthV45°90°
Nominal lengthVD = 138D = 158D = 138D = 158D = 138D = 158
Nominal lengthVΔptLWAΔptLWAΔptLWAΔptLWAΔptLWAΔptLWA
Nominal lengthl/sm³/hPadB(A)PadB(A)PadB(A)PadB(A)PadB(A)PadB(A)
600 25 90 618616111881619191316
600 40 144 163014282731212849323329
600 60 216 3642314061434640109447441
600 75 270 55494947955071471715111648
750 30 108 720617132091825211718
750 50 180 193316313634263170354532
750 70 252 3643304070445041137468942
750 85 306 534944461035074472015213149
900 35 126 8216191622111933222120
900 55 198 183315313934273180355132
900 75 270 3442273973435040149459442
900 95 342 544943471175180482395215149
1050 35 126 7195161520101732202018
1050 55 198 163112283732242978334830
1050 80 288 33422639784351401654410241
1050 105 378 575044471345188482835317550
1200 45 162 10247212425152251253122
1200 70 252 2336173357373734123387635
1200 95 342 424431421054668432274813944
1200 115 414 625046471535299493335420351
1350 50 180 11258222826182362273824
1350 75 270 2436183363374034140398535
1350 100 360 434431411124671432484815044
1350 120 432 6250444716252103483575421650
1500 55 198 12269233327212474284525
1500 80 288 2636183370384435157399536
1500 105 378 454431411214676432714816344
1500 130 468 6850484718552116494155524951
1650 60 216 7236211424102227251722
1650 90 324 153412323035213261363933
1650 120 432 2642224054443841108456942
1650 155 558 44503647905162491795311450
1800 65 234 7246221525112231262023
1800 100 360 173613333637253473384635
1800 130 468 2843224160454142123467843
1800 165 594 45503648975266491995412551
1950 70 252 8256231726122335272224
1950 100 360 163512323536233372374534
1950 135 486 2843224163444242131468243
1950 170 612 44503547995267492075412950


Quick sizing – sound power level and total differential pressure

Nominal lengthVDamper blade position
Nominal lengthV45°90°
Nominal lengthVD = 158D = 198D = 158D = 198D = 158D = 198
Nominal lengthVΔptLWAΔptLWAΔptLWAΔptLWAΔptLWAΔptLWA
Nominal lengthl/sm³/hPadB(A)PadB(A)PadB(A)PadB(A)PadB(A)PadB(A)
600 30 108 5174<159176<1516179<15
600 55 198 173214282933192953342929
600 75 270 324126375442353899435339
600 100 360 5650464696516247175539448
750 40 144 721517132181726221317
750 65 234 183414293534213068363431
750 90 324 3443263967443940131466540
750 110 396 51493945100515846195529747
900 45 162 721517152291831221518
900 70 252 173312293734202976353630
900 100 360 3543243975454140154467341
900 125 450 545038461175264472405311448
1050 50 180 822518182291838231719
1050 75 270 173311284034212984353930
1050 105 378 3342223878444039164457540
1050 135 486 545036451285166462725412448
1200 55 198 8235192123101944242019
1200 85 306 2034123049352430106374731
1200 115 414 3643223889444439193468641
1200 145 522 565035451415270463075413748
1350 65 234 11256212826132261272722
1350 95 342 2336133159372832130385733
1350 125 450 39432339102454940225479941
1350 155 558 595035451565275473465415148
1500 70 252 12267223127152270283023
1500 100 360 2336133164373032143396233
1500 135 486 434424391164654412604811242
1500 165 594 635036451735281473885516849
1650 80 288 725521142582128261422
1650 120 432 153511313136183262373033
1650 160 576 2744203955453140111465441
1650 200 720 4250304686524947173548448
1800 85 306 725521152682231261522
1800 125 450 153511313236183266373233
1800 170 612 2844183960453140122475541
1800 210 756 4250304691524947186548848
1950 90 324 725522162692234271623
1950 133 480 163611323637193274383533
1950 177 636 2844193962453340130476042
1950 220 792 4250294696525147201549349


Slot diffusers with individually manually adjustable air control elements and an aesthetically shaped face section with one to four slots, for one-way horizontal, alternating horizontal or alternating angled air discharge. For supply air or extract air. For installation into suspended ceilings.

Ready-to-install component which consists of the diffuser face with individually adjustable black or white air control elements, and of a plenum box with side entry spigot and suspension lugs.

Clamp fixing or concealed screw fixing

Spigot suitable for circular ducts to EN 1506 or EN 13180.

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

Special characteristics

  • Individually adjustable air control elements to meet individual local requirements
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Materials and surfaces

  • Diffuser face made from extruded aluminium sections
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Plenum box made of galvanised sheet steel
  • End plates and end angles made of aluminium
  • Lip seal made of rubber
  • Lining is mineral wool
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • WW: Air control elements similar to RAL 9010, white


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Technical data

  • Nominal length: 600 – 1950 mm
  • Number of slots: 1, 2, 3, 4
  • Neck extension: 0, 30, 55, 80, 104, 105, 129 mm
  • Minimum volume flow rate: 15 – 50 (l/s)/m or 54 – 180 (m³/h)/m
  • Maximum volume flow rate with LWA ≅ 50 dB(A): 45 – 135 (l/s)/m or 162 – 486 (m³/h)/m
  • Supply air to room air temperature difference: –10 to +10 K

00100698_0

 Type
VSD35       Slot diffuser

 Number of slots
1
2
3
4

 Connection
F       Diffuser face only
E       90° corner section only
       Plenum box
AK       With clamp fixing
DK       With lining and clamp fixing
AS       With concealed screw fixing
DS       With lining and concealed screw fixing
AA       Asymmetric and with clamp fixing
       Diffusers with a shorter plenum box as well as non-active diffusers require a rear blanking plate
       Length of blanking plate = L1 – L3

 Damper blade for volume flow rate balancing
No entry: none
M       With (only AK, DK, AS, DS and AA)

 Accessories
No entry: none
L       With lip seal

 Nominal size [mm]
       Nominal length LN
600
750
900
1050
1200
1350
1500
1650
1800
1950

Specify ØD and Y only for AK, DK, AS, DS and AA
Up to LN 1500 with one spigot, from LN 1650 with two spigots
       spigot diameter ØD
98       1 slot
123       1 or 2 slots
138       2 or 3 slots
158       3 or 4 slots
198       4 slots

 

       Neck extension Y
       No entry: 0
30
55
80
105
129       (only AK, DK and AA)

 End pieces
       No entry: without
       Both ends with end angles factory fitted
C1       to profile 000
C2       to profile B00
       Both ends with end plates factory fitted
C5       to profile 000
C6       to profile B00
       To be ordered separately for slot diffusers for linear arrangement

 Extended border
       No entry: without (only AK, DK, AA)
B00       With extended border

 Exposed surface
       No entry: anodised, E6-C-0, natural colour
P1       Powder-coated, specify RAL CLASSIC colour

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

 Air pattern
       No entry: alternating horizontal (WH)
WS       Alternating angled
HL       Horizontal left (opposite direction from spigot)
HR       Horizontal right (same direction as spigot)

 Colour of air control elements
       No entry: similar to RAL 9005, black
WW       Similar to RAL 9010, white

 

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Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
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