Type DLK-Fb

For horizontal four-way air discharge, with integral fire barrier for mineral fibre false ceilings, with fixed air control blades

Square ceiling diffusers for Odenwald false ceilings, to ensure fire integrity in the event of a fire on the room side

  • Nominal sizes 600, 625
  • Volume flow rate range 220 – 460 l/s or 792 – 1656 m³/h
  • Square diffuser face
  • Diffuser face made of galvanised sheet steel, powder-coated
  • Automatic release at 72 °C in the event of a fire
  • For supply and extract air
  • For variable and constant volume flows
  • 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

DLQ/600 00132970_0


  • Application
  • Description

Application

  • Type DLK-Fb ceiling diffusers with integral fire barrier are used as supply air or extract air diffusers for comfort zones
  • For fire integrity in the event of a fire on the room side (DIN 4102-2, clause 7.2.1.)
  • Max. fire load in the false ceiling void: 7 kWh/m²
  • Release in the event of a fire is by fusible link
  • Horizontal 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 installation into mineral fibre false ceilings made by Odenwald
  • Important! Type DLK-Fb ceiling diffusers are not approved for self-supporting fire-resistant false ceilings; for such ceilings, Type KU-K30 fire dampers or Type FVZ-K30 fire protection valves must be used

Special characteristics

  • Horizontal four-way supply air discharge
  • Diffuser face made of galvanised sheet steel
  • With integral fire barrier for mineral fibre false ceilings
  • Horizontal duct connection

Classification

  • Fire resistance class according to certificate 80764-M1/Schu
  • Suspended ceilings combined with steel girder ceilings, F90
  • Suspended ceilings combined with steel reinforced concrete ceilings, F90
  • Suspended ceilings combined with wooden beam ceilings, F30

Nominal sizes

  • 600, 625

Parts and characteristics

  • Square diffuser face with fixed air control blades
  • Diffuser front frame
  • Plenum box with fire barrier and release mechanism, release temperature 72 °C
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Construction features

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

Materials and surfaces

  • Diffuser face and plenum box made of galvanised sheet steel
  • Fire barrier made of special insulation material to EN 13501-1, fire rating class A2-s1 d0
  • 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, Technical data, Quick sizing, Specification text, Order code

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code

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-Fb ceiling diffusers have fixed blades. Horizontal air discharge is four-way. The supply air to room air temperature difference may range from –10 to +10 K.

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

Nominal sizes

600, 625 mm

Minimum volume flow rate

220 – 380 l/s or 792 – 1368 m³/h

Maximum volume flow rate, with LWA ≅ 50 dB(A)

300 – 460 l/s or 1080 – 1656 m³/h

Supply air to room air temperature difference

–10 to +10 K


Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

The maximum volume flow rates apply to a sound power level of approx. 50 dB (A).

Exact values for all parameters can be determined with our Easy Product Finder design programme.

DLK-Fb, sound power level and total differential pressure

Nominal size V Δpt LWA
Nominal size l/s m³/h Pa dB(A)

600 625

220

792

9

28

600 625

300

1080

17

37

600 625

380

1368

28

44

600 625

460

1656

41

50


Square ceiling diffusers with integral fire barrier that ensures fire integrity in the event of a fire on the room side. Supply air and extract air variants for comfort zones. Diffuser face with fixed air control blades for horizontal supply air discharge. For flush installation into fire-resistant mineral fibre false ceilings made by Odenwald.

Ready-to-install component which consists of the diffuser face made of galvanised sheet steel, with fixed air control blades and a diffuser front frame with perimeter seal, a plenum box, side entry spigot, and support angles for installing the ceiling diffuser. The integral fire barrier consists of a mineral fibre board and a fusible link, release temperature 72 °C.

The diffuser face is fixed to the cross bar with a central screw.

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 four-way supply air discharge
  • Diffuser face made of galvanised sheet steel
  • With integral fire barrier for mineral fibre false ceilings
  • Horizontal duct connection

Materials and surfaces

  • Diffuser face and plenum box made of galvanised sheet steel
  • Fire barrier made of special insulation material to EN 13501-1, fire rating class A2-s1 d0
  • Diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Technical data

  • Nominal sizes: 600, 625 mm
  • Minimum volume flow rate: 220 – 380 l/s or 792 – 1368 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 300 – 460 l/s or 1080 – 1656 m³/h
  • Supply air to room air temperature difference: –10 to +10 K

Sizing data

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

00133961_0

 Type
DLK-Fb       Ceiling diffuser

 Nominal size [mm]
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 %

Order example: DLK-Fb/600

Nominal size

600

Exposed surface

RAL 9010, pure white, gloss level 50 %


 

Dimensions and weight, Product details

  • Dimensions and weight
  • Product details
DLK-Fb 00179797_0


DLK-Fb

Nominal size
□Q1
mm
□Q2
mm
H1
mm
Aeff

H3
mm
ØD
mm
A
mm
C
mm
m
kg
600 598 548 13 0.1100 416 298 250 40 17.0
625 623 573 13 0.1230 430 298 260 40 19.0


Diffuser face DLK-Fb 00179803_0


DLK-Fb

Nominal size
□Q1
mm
□Q2
mm
Aeff

600 598 548 0.1100
625 623 573 0.1230

Aeff applies to four-way air discharge


Installation examples, Installation details, Basic information and nomenclature

  • Installation examples
  • Installation details
  • Basic information and nomenclature
Installation in continuous ceilings 00104389_0..


Installation and commissioning

  • Preferably for rooms with a clear height up to 4.0 m
  • Horizontal duct connection
  • The technical documentation from Odenwald applies
  • The latest general appraisal certificate P-3449/3399-MPA BS applies

Installation information

  • Flush ceiling installation
  • Installation in metal support systems with suitable support angles
  • Installation in linear beam grid ceilings with suspended plenum box, with the support angles removed
  • Installation and making connections to be performed by others
  • The diffuser face is fixed to the plenum box cross bar using the central fixing screw
  • Screw is concealed by a decorative cap

These are only schematic diagrams to illustrate installation details.

Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₁ [mm]

Outer diameter of a circular diffuser face

ØD₂ [mm]

Diameter of a circular diffuser face style

ØD₃ [mm]

Diameter of a circular plenum box

□Q₁ [mm]

Outer diameter of a square diffuser face

□Q₂ [mm]

Dimensions of a square diffuser face style

□Q₃ [mm]

Dimensions of a square plenum box

H₁ [mm]

Distance (height) from the lower edge of the suspended ceiling to the lower edge of the diffuser face

H₂ [mm]

Height of a ceiling diffuser, from the lower edge of the suspended ceiling to the upper edge of the spigot

H₃ [mm]

Height of a ceiling diffuser with plenum box, from the lower edge of the suspended ceiling to the upper edge of the plenum box or of the spigot

A [mm]

Position of the spigot, defined by the distance of the spigot centre line to the lower edge of the suspended ceiling

C [mm]

Length of the spigot

m [kg]

Weight

Definitionen

LWA [dB(A)]

Schallleistungspegel des Strömungsgeräusches, A-bewertet

V [m³/h] und [l/s]

Volumenstrom

Δtz [K]

Zulufttemperaturdifferenz, Zulufttemperatur minus Raumtemperatur

Δpt [Pa]

Gesamtdruckdifferenz


Alle Schallleistungspegel basieren auf 1 pW.

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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