Type  VSD50

With wide diffuser face for larger volume flow rates

Slot diffusers with 50 mm diffuser face (nominal width) and adjustable air control elements

  • Nominal length from 600 to 1950 mm, 1 or 2 slots
  • Volume flow rate range 20 – 120 (l/s)/m or 72 – 432 (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

VSD50-1-AK 00134738_0
  • Application
  • Description

Application

  • Type VSD50 slot diffusers are used as supply air or extract air devices in comfort zones
  • 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

  • VSD50-*: 1 or 2 slots
  • VSD50-*-F: Diffuser face only
  • VSD50-*-E: Corner section
  • VSD50-...: Diffuser face without extended border
  • VSD50-.../B00: Diffuser face with extended border
  • VSD50-...: Black air control elements
  • VSD50-.../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 plate and end angle 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 VSD50 with clamp fixing 00129727_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 VSD50 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 VSD50 diffusers may also be used for extract air.

Nominal length600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
Number of slots1, 2
Neck extension0, 25, 50, 75, 100, 125 mm
Minimum volume flow rate20 – 40 (l/s)/m or 72 – 144 (m³/h)/m
Maximum volume flow rate, with LWA ≅ 50 dB(A)70 – 120 (l/s)/m or 252 – 432 (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 = 123D = 158D = 123D = 158D = 123D = 158
Nominal lengthVΔptLWAΔptLWAΔptLWAΔptLWAΔptLWAΔptLWA
Nominal lengthl/sm³/hPadB(A)PadB(A)PadB(A)PadB(A)PadB(A)PadB(A)
600 11 38 4<153<155<154<157<154<15
600 25 90 193117282532202836322428
600 40 144 494544426546504291466042
600 50 180 77526949101537849143549350
750 15 54 5<154<157155<151115712
750 30 108 203317292833202943342529
750 40 144 354130375042353777424538
750 55 198 6551564794526648145538548
900 15 54 4<153<156<154<1510<155<15
900 35 126 203417303234213053352831
900 50 180 4144334165454241107465841
900 65 234 70535649110547149181559750
1050 20 72 6174<159176<1516188<15
1050 40 144 223517313736223264373232
1050 55 198 4145314170454241120466042
1050 70 252 66525048113536849195559850
1200 25 90 720517132181724211117
1200 40 144 193313293434192961342930
1200 55 198 3542253864433639114445439
1200 75 270 645247481185367482125410149
1350 25 90 719515131971523201115
1350 45 162 213414304035213174363431
1350 65 234 4345294183464442154477042
1350 80 288 655244481265367482335410649
1500 30 108 822618172291832231419
1500 50 180 233615314737243289373933
1500 70 252 4546294192474742174487743
1500 85 306 665243471355369482565511349
1650 30 108 5184<157185<1511196<15
1650 50 180 133111282032132831331828
1650 75 270 294324404444304070453940
1650 100 360 5152434978535249124546950
1800 35 126 6205179216171521817
1800 58 210 163413302535163140362231
1800 82 294 304425404845314179464241
1800 105 378 5052414879535149130547050
1950 35 126 5194168205161420716
1950 60 216 153412302434153041352131
1950 85 306 304423404945304182464241
1950 110 396 4952394881535149137557150


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 25 90 5175<158176<1511177<15
600 45 162 173215292433182937332329
600 65 234 354331405044374076454741
600 85 306 6052524985536249130548050
750 30 108 6185<159186<151419815
750 50 180 153112282432162839332229
750 80 288 3845314261464142100475643
750 100 360 6053494995546350156558851
900 35 126 61951610196161820916
900 60 216 173413303034183052352731
900 85 306 3444264060453741104465542
900 110 396 57524449100536149174559150
1050 40 144 720517122171722211117
1050 65 234 173312303234183058352931
1050 90 324 3243233961443540110455541
1050 120 432 57524148108536249196559850
1200 45 162 721518142281827231318
1200 70 252 173312303434193064353131
1200 100 360 3544244070453841131466342
1200 130 468 585240481185464492225510650
1350 50 180 822519172391932241519
1350 80 288 203513314336223282373833
1350 110 396 3845254180464242155477243
1350 140 504 615240481305468502505611651
1500 55 198 9236192024102038251720
1500 90 324 2337153352382634102394635
1500 125 450 45472843100485044196508945
1500 150 540 655340491445472502825612851
1650 60 216 5214189226181522818
1650 95 342 133411312235143137362031
1650 135 486 264521414446284275474142
1650 175 630 4453354974544750126566851
1800 65 234 62241910236191723919
1800 105 378 143611322536163244372333
1800 145 522 274521424846294283474443
1800 185 666 4453345078544850135567151
1950 70 252 623519112462019241020
1950 110 396 143611322636163247372433
1950 150 540 274520414846294286474443
1950 190 684 4352324978544650138557151


Slot diffusers with individually manually adjustable air control elements and an aesthetically shaped face section with one or two slots, for horizontal one-way, horizontal alternating or angled alternating 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 plate and end angle 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
  • Neck extension: 0, 25, 50, 75, 100, 125 mm
  • Minimum volume flow rate: 20 – 40 (l/s)/m or 72 – 144 (m³/h)/m
  • Maximum volume flow rate with LWA ≅ 50 dB(A): 70 – 120 (l/s)/m or 252 – 432 (m³/h)/m
  • Supply air to room air temperature difference: –10 to +10 K

00130909_0

 Type
VSD50       Slot diffuser

 Number of slots
1
2

 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
123       1 slot
158       1 or 2 slots
198       2 slots

 

       Neck extension Y
       No entry: 0
25
50
75
100
125       (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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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