LFQ linear air diffuser
Air diffusers, plenum boxes & air valves

LFQ linear air diffuser

Technical details

  • suitable for supply and exhaust air
  • slot type, fixed air deflection blades
  • high volume flow rates at low sound power levels
  • Nominal sizes ∅: 325 mm until 625 mm
  • Hygiene certificate

Zertifikate

Hygiene certificate

Product details

LFQ air diffusers are suitable for supply air and exhaust air. Slot type, fixed air deflection blades ensure high volume flow rates at low sound power levels. The engaged profile in a progressive gradient towards the centre avoids disturbances of air jet by bended edges. LFQ air diffusers are made of powder coated, galvanized sheet steel.

  • Nominal sizes: 325 mm until 625 mm 
  • Hole pattern: 325 mm until 600 mm

Technical specifications

Not all of the variant values listed here can be combined with each other. Use our Wildeboer configurator to easily check the possible combinations.

Front plate form
  • Quadr., quadr. hole pattern
  • Quadr., quadr. hole pattern (wart holes)
Front plate size
  • 325 mm
  • 400 mm
  • 500 mm
  • 600 mm
  • 625 mm
Hole pattern size
  • 325 mm
  • 400 mm
  • 500 mm
  • 600 mm
Connection parts
  • Quadr. plenum box, 1 lat. connect. piece
  • Quadr. plenum box, 2 lat. connect. piece
  • Quadr. plenum box, 1 top connect. piece
Connecting piece dimensions
  • DN100
  • DN125
  • DN150
  • DN160
  • DN180
  • DN200
  • DN224
  • DN250
  • DN280
  • DN300
  • DN315
Damper
  • Without damper
  • With damper
Air deflector plate
  • Without air deflector plate
  • With air deflector plate
Colour Plenum box
  • Galvanized inside and outside
  • Galvanized inside, outside in colour RAL
  • Black inside & outside
Lip seal
  • Without lip seal
  • With lip seal
Air direction
  • Supply air (outflowing)
  • Exhaust air (inflowing)

Product pictures

Media & Downloads

User manual LFQ linear air diffuser (2019-06 / DE)
PDF 1MB
Hygiene certificate LFQ linear air diffuser (2022-11 / DE)
PDF 207KB
Quick selection swirl diffuser (2020-11 / DE)
PDF 931KB
Hygiene advices swirl diffuser (2010-09 / DE)
PDF 164KB