Attenuator (TSD)
Flexible or rigid execution

ALUFLEX

  • External and internal duct made from perforated ALUFLEX duct
  • Non combustible insulation layer (25 mm or 50 mm)
  • End caps optionally with male coupling or lip sealing
  • Optional: Rigid execution, stainless steel
  • Optional: External duct made from galvanised steel, internal duct made from perforated ALUFLEX duct
  • Optional: External duct made from galvanised steel, internal duct made from galvanised perforated plate

ALUFLEX attenuators
are also based on Aero ALUFLEX ducts. The inner duct is mechanically perforated in the area of the insulation section. The non combustible insulating layer is coated with abrasion-proof glass fibre and available in thickness of 25, 50, 75 and 100 mm. Page 8 of the brochure lists the values of sound dissipation (insertion loss) in correlation to insulation thickness. End caps made from galvanised sheet steel ensure easy duct installation. The bending radius is according to the nominal width the 2 to 2,5-fold of the diameter of the external duct. The Aero ALUFLEX attenuators can also be installed in bent shape.
 

Cross-talk sound attenuator
are also available in two additional versions:
1. External duct made of galvanised sheet steel, perforated inner duct made of two-ply aluminium strip, insulation layer the same as the Aero ALUFLEX attenuator
2. External duct and perforated internal duct made of galvanised sheet steel, insulation layer the same as the Aero ALUFLEX attenuator

ALUFLEX ATTENUATOR TSD Aluminium Standard , Ref. No. 13

ATTENUATOR TSD, Ref. No. 15
External duct made of galvanised steel 
Inner duct made of perforated Aero Aluflex duct 

ATTENUATOR TSD perforated steel, Ref. No. 16
External duct made of galvanised steel or galvanised spiral duct
Inner duct made of galvanised perforated plate 

Acoustic calculations for attenuators
standalone programme
Download
Acoustic calculations for attenuators
for Windows 7 and XP; standalone programme
Download

Attenuator - TSD No. 13
Make: AEROTECHNIK E. Siegwart
Type: Ref. No. 13

Aero-Aluflex attenuator, internal duct made from Aero-Aluflex duct, mechanically perforated. External duct made from Aero-Aluflex duct. Insulation layer (25, 50, 75 or 100 mm) made from glass fibre with glass fleece, abrasionproof and non-combustible according to DIN 4102 class A1.

Attenuator - TSD No. 15
Make: AEROTECHNIK E. Siegwart
Type: Ref. No. 15

Aero attenuator, internal duct made from Aero-Aluflex duct, mechanically perforated. External duct made from rigid, galvanized, longitudinally laser-welded flat duct. Insulation layer (25, 50, 75 or 100 mm) made from glass fibre with glass fleece, abrasionproof and non-combustible according to DIN 4102 class A1.

Attenuator - TSD No. 16
Make: AEROTECHNIK E. Siegwart
Type: Ref. No. 16

Aero attenuator, internal duct made from galvanized perforated plate. External duct made from rigid, galvanized, longitudinally laser-welded flat duct. Insulation layer (25, 50, 75 or 100 mm) made from glass fibre with glass fleece, abrasionproof and non-combustible according to DIN 4102 class A1.