Type 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

DLQ-AK-3 00132951_0
  • Application
  • Description

Application

  • Type DLQL-AK ceiling diffusers are used as supply air diffusers for comfort zones
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • Horizontal one-way to four-way supply air discharge for 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 all types of ceiling systems

Special characteristics

  • Horizontal one-way to four-way supply air discharge
  • Diffuser face made of formed sheet steel, powder-coated
  • For all types of ceiling systems
  • Spigot side can be selected
  • Horizontal duct connection

Nominal sizes

  • 300, 400, 500, 600, 625

Variants

  • DLQ-AK-1: One-way air discharge
  • DLQ-AK-2: Two-way air discharge
  • DLQ-AK-2E: Two-way air discharge, for corners
  • DLQ-AK-3: Three-way air discharge
  • DLQ-AK-4: Four-way air discharge

Parts and characteristics

  • Square diffuser face with fixed air control blades
  • Diffuser front frame
  • Diffuser face is attached to the plenum box and cannot be removed

Attachments

  • M: Damper blade for volume flow rate balancing

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 of formed sheet steel
  • Damper blade and plenum box made of galvanised sheet steel
  • Lip seal made of rubber
  • Diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

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 00117575_0.

① Diffuser face
② Plenum box
③ Suspension lug
④ Spigot


Optional
⑤ Damper blade for volume flow rate balancing

Functional description

Ceiling diffusers direct the air from air conditioning systems into the room. 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 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 DLK-AK ceiling diffusers have fixed blades. Horizontal air discharge is one-way to four-way. The supply air to room air temperature difference may range from –10 to +10 K.

Nominal sizes300, 400, 500, 600, 625 mm
Minimum volume flow rate40 – 150 l/s or 144 – 540 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)545 – 565 l/s or 1962 – 2034 m³/h
Supply air to room air temperature difference–10 to +10 K


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)
300 40 144 101612191823
300 65 234 263132344738
300 95 342 5642674510149
300 120 432 90501075316157
400 50 180 4<156<151013
400 105 378 192825324235
400 160 576 454158459948
400 215 774 81501055417857
500 100 360 5167191423
500 180 648 163222354639
500 260 936 334347469750
500 340 1224 5750805316657
600 150 540 4147191423
600 265 954 143121364440
600 385 1386 294244479451
600 505 1818 5050765516159
625 150 540 4117161521
625 265 954 142821334638
625 385 1386 293944449749
625 545 1962 5950885519460


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)
300 40 144 91611181722
300 65 234 243128334537
300 95 342 504261449648
300 120 432 8050975215356
400 50 180 4<15691013
400 105 378 192825314535
400 160 576 4541594410448
400 215 774 82501065318857
500 100 360 5127161520
500 180 648 163023344738
500 260 936 344147459849
500 350 1260 6150865417858
600 150 540 4117151320
600 265 954 132921334138
600 385 1386 274143458750
600 515 1854 4850785415559
625 150 540 487131417
625 265 954 132621314235
625 385 1386 273843438947
625 565 2034 5850935519359


Ceiling diffusers with square diffuser face. For supply air only, for comfort zones. Diffuser face with fixed air control blades for horizontal one-way to four-way supply air discharge. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face with fixed air control blades, front frame with perimeter seal, plenum box, side entry spigot and suspension holes.

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

  • Horizontal one-way to four-way supply air discharge
  • Diffuser face made of formed sheet steel, powder-coated
  • For all types of ceiling systems
  • Spigot side can be selected
  • Horizontal duct connection

Materials and surfaces

  • Diffuser face made of formed sheet steel
  • Damper blade and plenum box made of galvanised sheet steel
  • Lip seal made of rubber
  • Diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Technical data

  • Nominal sizes: 300, 400, 500, 600 mm
  • Minimum volume flow rate: 440 – 150 l/s or 144 – 540 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 545 – 565 l/s or 1962 – 2034 m³/h
  • Supply air to room air temperature difference: –10 to +10 K

00100712_0

 Type
DLQ-AK       Ceiling diffuser

 No. of sides for air discharge
1
2
2E
3
4

 Damper blade for volume flow rate balancing
No entry: none
M       With

 Accessories
No entry: none
L       With lip seal

 Nominal size [mm]
300
400
500
600
625

 

 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 %

 Spigot side
       No specification required in case of 4-way air discharge
A
B
C
D

 

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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