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
  • Grille 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
  • Technology
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration 00155917_0

① Diffuser face
② Central fixing screw
③ Plenum box
④ Suspension bar
⑤ Fire barrier
⑥ Fusible link
⑦ Spigot

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 sizes600, 625 mm
Minimum volume flow rate220 – 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 – sound power level and total differential pressure

Nominal size V ΔptLWA
Nominal size l/s m³/h PadB(A)
600 625 220 792 928
600 625 300 1080 1737
600 625 380 1368 2844
600 625 460 1656 4150


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
  • Grille 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

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 %

 

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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