lindab | Acoustic solutions Semi-rigid circular silencerSLFA Description SLFA is a flexible silencer that can be adapted to any instal- lation situation. The bendability of the silencer allows adap- tation to very confined spaces and difficult wiring. Silencer is made from 2-layer, flexible aluminium tubes of type SRF. The inner tube is micro-perforated and between the inner and outer tubes is glass wool attenuation material layer. The ends of the silencers are covered with aluminium gables. The duct connections fits inside ducts. SLFA 25 and 50 come in the dimensions Ø80 - 315 mm and 1000 mm in length. (Also available in lengths of 750, 1250, 1500 and 2000 mm). The silencers can withstand temperatures up to 200°C. Advantages • Small storage and transport volume. Technical data Duct materials: Inner wall: Insulation: Outer wall: Minimum bending radius: Maximum temperature: Fire resistance: Aluminium + aluminium (AL) Glass wool 25 mm Aluminium + aluminium 2 - 3×d +200ºC Not flammable in accordance with DIN 4102 class A1 Order code Product SLFA d SLFA Connection (d) ( Ød 1 nom ) 80 - 315 mm Length (l) in mm (l nom ) 750 - 2000 mm Insulation thickness ( t ) in mm 25 or 50 mm l t Example: SLFA - 20 0 - 1 00 0 - 25 Lindab reserves the right to make changes without prior notice 1 2020-06-30
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