LFAS
Rectangular cased silencer intended to provide attenuation in circular ducted systems.
Rectangular silencer with circular connection LFAS is intended for attenuation in ventilation systems. LFAS adresses good practice with respect to cleanability, fibre-proofing, emissions and micro-organisms.
LFAS is type approved with respect to fire class and air tightness class. Type approval certificate No. 0715. The silencer is available in two versions (type 1 and 2) with different performances. Type 2 is designed with baffle.
LFAS is manufactured as standard in galvanised sheet steel with perforated inner tube. The absorption material consists of mineral wool with a surface layer of glass fibre reinforced staple fibre felt.
The connections are provided with rubber seals and fit standard Spiro ducts. They are also available with flanges. The silencer can also be manufactured in stainless steel or Aluzinc, with or without surface treatment. For severely polluted air the absorption material can be enclosed.
- Available in two versions with different performances
- The connections fit standard Spiro ducts
- Also available with flanges or socket connections
- Manufactured as standard in galvanised sheet steel, but can also be manufactured in stainless steel or Aluzinc, with or without surface treatment
- Sizes from Ø80mm up to Ø400mm, length 500mm or 1000mm
