The non-insulated flexible air ducts ALU AFS consist of a five-layer flexible duct, made of three layers of aluminum foil and two layers of polyester foil.

Specifications of ALU AFS:

• Available stock diameters: from Ø102 to Ø508;
• Operating temperature: from -30°C to +150°C;
• Certificates: EN ISO 11925-2, EN ISO 13823, Class M1 – France, Class 1 – Italy;

Insulated flexible air ducts ISO AFS consist of a five-layer flexible duct covered with 25 mm thick fiberglass insulation (16 kg/m³), wrapped in a laminate of polyester and aluminum foil.

Specifications of ISO AFS:

• Available stock diameters: from Ø102 to Ø508. (Diameters from Ø508 to Ø800 – available on order);
• Operating temperature: from -30°C to +150°C;
• Certificates: Class M1 – France, Class 1 – Italy, GOST R – Russia;

Sound-absorbing insulated flexible air ducts SONO AFS consist of a five-layer flexible duct covered with 25 mm thick fiberglass insulation (16 kg/m³), wrapped in a laminate of polyester and aluminum foil.

Specifications of SONO AFS:

• Diameters: from Ø102 to Ø800;
• Operating temperature: from -30°C to +150°C;
• Certificates: Class M1 – France, Class 1 – Italy;

TANGRA keeps the listed flexible air ducts in stock. Upon individual inquiry, you can receive technical information and delivery times for other models:

• Rectangular flexible air ducts ALU AFS – Rectangular;
• Thermally insulated polyester flexible air ducts ISO AFS – PVC; 
• Semi-flexible stainless steel air duct SEMIAFS – INOX (до 900 градуса);
• Flexible air ducts with zero emissions AFS GREEN (Greenguard);
• Hygienic aluminum flexible air ducts AFS HYGIENE;