ALUMINIUM FLEXIBLE DUCTS AND AIR HOSES

Intelmann® Aluflex Premium Aluminium Flexible Duct Ø 80–200 mm – 5 m, increased material thickness 120 µmThe Intelmann® Aluflex Premium (Intelmann FLEX) is the robust advancement of the classic aluminium flexible duct and has been specially developed for applications requiring higher stability combined with high flexibility. It is ideal for ventilation, air conditioning, and exhaust systems in residential, commercial, and industrial sectors.Thanks to the increased material thickness of 120 µm, the duct is significantly more resistant to mechanical influences and has a higher inherent stiffness without losing its flexibility. This facilitates installation and ensures a durable, secure setup.The duct is made entirely from spiral-wound aluminium and guarantees very high airtightness (airtightness class D) while optimally adapting to complex duct routes.Advantages at a glance:✅ Premium version – Significantly more stable than standard aluminium flexible ducts✅ Increased material thickness (120 µm) – Durable and shape-retaining✅ High airtightness – Airtightness class D✅ Flexible & adaptable – Ideal for complex installations✅ Wide temperature range – −30 °C to +250 °C✅ Non-combustible – Euroclass A1 according to EN 13501-1✅ VDI 6022 compliant – Suitable for hygienically sensitive applicationsTechnical details:✔ Product name: Intelmann® Aluflex Premium (FLEX)✔ Diameter: Ø 80 – 200 mm (internal diameter)✔ Length: 5 m (compressed to approx. 1.2 m)✔ Material: Aluminium✔ Material thickness: 120 µm✔ Airtightness class: D✔ Max. temperature: +250 °C✔ Min. temperature: −30 °C✔ Max. pressure: +3000 Pa✔ Max. negative pressure: −750 Pa✔ Max. air velocity: 30 m/s✔ Fire protection: EN 13501-1, class A1✔ Bending radius: min. 1 × diameter✔ Halogen-free: Yes✔ Silicone-free: YesInstallation & processing:The aluminium flexible duct is delivered compressed (approx. 1.2 m) and can be extended to the full length of 5 m.For optimal results, it is recommended to extend the duct with two people and in one continuous pull to the desired length.Installation is quick and easy:– Connection to ventilation spigots or duct systems– Fixing, e.g. with hose clamps– Optional sealing with aluminium adhesive tapeApplications & areas of use:The Intelmann® FLEX is particularly suitable for:– Ventilation and exhaust systems– Connection ducts for ventilation units– Kitchen, bathroom, and WC exhaust– Air conditioning and ventilation systems– Technical rooms and commercial installationsWith the Intelmann® Aluflex Premium, you receive a particularly stable, durable, and at the same time flexible solution for demanding ventilation installations with high requirements for airtightness, fire protection, and processing.

Intelmann® aluminium flexible duct black painted Ø 80–150 mm – 2.5 m, 2-ply, Made in GermanyThe Intelmann® aluminium flexible duct black painted (FSL) is the ideal solution for discreet and flexible air guidance, especially in the area of combustion air supply for wood-burning stoves. Thanks to the black stove paint, the duct visually integrates perfectly into modern stove systems and avoids distracting contrasts with silver standard ducts.Made from pure aluminium in 2-ply quality (2 × 60 µm), the aluminium flexible duct combines high flexibility with sufficient stability. The heat-resistant coating up to 200 °C remains intact even when stretched or compressed.Advantages at a glance:✅ Black painted – Discreet appearance for stove and heating systems✅ 2-ply quality – 2 × 60 µm for increased stability✅ Flexible & extendable – Ideal for confined installation situations✅ Heat resistant – Up to +200 °C✅ Made in Germany – High-quality workmanship✅ Durable coating – Remains intact even with movementTechnical details:✔ Product name: Intelmann® aluminium flexible duct black painted✔ Diameter: Ø 80 / 100 / 125 / 150 mm (internal diameter)✔ Material: Pure aluminium✔ Construction: 2-ply (2 × 60 µm)✔ Colour: Matte black (stove colour)✔ Temperature resistance: up to +200 °C✔ Extended length: up to 2.5 m✔ Delivery condition: compressed to approx. 0.6 m✔ Standard: DIN 24146Installation & processing:The aluminium flexible duct is delivered compressed to save space and can be extended to the desired length.For optimal results, it is recommended to pull the duct out evenly to ensure clean air guidance.Installation is straightforward:– Connection to stove spigot or ventilation ducts– Fixing, e.g. with hose clamps– Optional sealing with aluminium adhesive tapeApplication & areas of use:The black painted aluminium flexible duct is particularly suitable for:– Combustion air supply for wood-burning stoves– Ventilation and exhaust air systems– Connection lines in technical rooms– Applications with visible duct routingThanks to the visually appealing surface, it is ideal for visible installations where design as well as function plays a role.With the Intelmann® aluminium flexible duct black painted, you receive a flexible, durable and visually high-quality solution for modern ventilation and stove applications.

Intelmann® Insulation Hose / Thermal Insulation Ø 80–250 mm – 10 m, 25 mm Insulation ThicknessThe Intelmann® Insulation Hose is the efficient solution for thermal insulation of ventilation and air conditioning ducts. It reliably reduces heat and cold losses and prevents the formation of condensation in air ducts.The hose consists of a glass fibre reinforced aluminium laminate outer jacket with a 25 mm thick insulation layer made of insulating wool. An integrated barrier layer facilitates processing and prevents direct contact with the insulating wool.Advantages at a glance:✅ Effective thermal insulation – Reduces energy losses✅ Condensation protection – Prevents moisture formation✅ 25 mm insulation layer – High insulation performance✅ Easy installation – Slip over existing pipes✅ With barrier layer – Clean and safe processing✅ Flexible application – Suitable for various pipe systemsTechnical details:✔ Product name: Intelmann® Insulation Hose✔ Diameter: Ø 80 – 250 mm (internal diameter)✔ Length: 10 m✔ Insulation thickness: 25 mm✔ Temperature range: −30 °C to +140 °C✔ Operating pressure: up to +2000 Pa✔ Bending radius: 0.54 × Ø + 25 mm✔ Standard colour: Aluminium / SilverMaterial construction:✔ Outer jacket: Alu-/poly laminate, glass fibre reinforced✔ Insulation layer: Polyester✔ Insulating wool: 25 mm, 16 kg/m³✔ R-value: 0.65 m²K/W (ASTM C177-76)✔ Barrier layer: integratedImportant note on selection:The specified size refers to the internal diameter of the insulation hose.A corresponding pipe (e.g. spiral seam pipe or aluminium flexible pipe) can be insulated directly. In practice, however, it is recommended to choose the insulation hose one size larger to facilitate installation.Installation:– Simply pull the insulation hose over the existing pipe– No special tools required– Protects the pipe diffusion-tight against moisture and temperature fluctuationsApplication & areas of use:The insulation hose is ideal for:– Ventilation and air supply systems– Air conditioning units– Supply and exhaust air ducts– Prevention of condensation formation– Reduction of heat and cold lossesWith the Intelmann® Insulation Hose, you receive a reliable, installation-friendly and high-performance solution for the thermal insulation of ventilation ducts in residential, commercial and industrial applications.

Intelmann® insulated aluminium flexible duct Ø 80–355 mm – 10 m, 25 mm insulation thicknessThe Intelmann® insulated aluminium flexible duct is the flexible all-in-one solution for airflow and simultaneous thermal insulation in ventilation, air conditioning and exhaust systems. Its multi-layer construction makes it ideal for applications where condensation formation needs to be prevented and heat or cold losses reduced.The duct consists of an internal aluminium tube with concealed steel spiral, combined with a 25 mm thick glass fibre insulation and a robust outer jacket. This design ensures high flexibility, good shape stability and reliable insulation performance.Advantages at a glance:✅ 2-in-1 solution – air duct and insulation in one✅ 25 mm insulation – reduces heat loss and prevents condensation✅ Extremely flexible – ideal for tight installation situations✅ High adaptability – smallest bending radius 0.54 × nominal width✅ Robust construction – polyester reinforced inside and out✅ Flame retardant – DIN 4102, class B2Technical details:✔ Product name: Intelmann® insulated aluminium flexible duct✔ Diameter: Ø 80 – 355 mm (internal diameter)✔ Length: 10 m✔ Insulation thickness: 25 mm all around✔ Temperature range: 0 °C to +140 °C✔ Fire protection: DIN 4102, class B2 (flame retardant)✔ Bending radius: min. 0.54 × nominal sizeMaterial construction:✔ Inner tube: aluminium with concealed steel spiral✔ Insulation: glass fibre insulation (25 mm)✔ Outer tube: polyester reinforcedImportant note on nominal size:The stated size refers to the internal diameter of the duct. This ensures a precise fit with ventilation pipes and connection spigots of the same nominal size.Installation & application:– Flexible installation for changes in direction– Connection to ventilation pipes, devices or spigots– Fixing, e.g. with hose clamps– Ideal for hard-to-reach installationsAreas of use:The insulated aluminium flexible duct is especially suitable for:– Ventilation and air conditioning systems– Supply and exhaust air systems– Roof and outdoor areas– Plant rooms– Applications with condensation riskWith the Intelmann® insulated aluminium flexible duct you get a flexible, installation-friendly and efficient solution for insulated air ducts that meets both the energy and functional requirements of modern ventilation systems.

Intelmann® Aluminium Flexible Duct Ø 80–250 mm – 10 m, flexible ventilation ductThe Intelmann® Aluminium Flexible Duct is a high-quality, fully flexible ventilation duct for supply and exhaust air systems. Due to its special construction of aluminium and polyester layers, it is ideal for complex duct routing, tight installation situations, and flexible connection solutions.The so-called sandwich construction of multiple, fully overlapping aluminium and polyester layers ensures particularly high strength and durability. An integrated concealed steel spiral provides additional stability while maintaining maximum flexibility.Advantages at a glance:✅ Extremely flexible – Ideal for tight installation situations✅ Robust sandwich construction – High stability and tear resistance✅ Polyester reinforced – Durable and resilient✅ Concealed steel spiral – Shape-stable with high flexibility✅ Flame retardant – DIN 4102, Class B1✅ Wide temperature range – −30 °C to +140 °CTechnical details:✔ Product name: Intelmann® Aluminium Flexible Duct✔ Diameter: Ø 80 – 250 mm (internal diameter)✔ Length: 10 m✔ Material: Aluminium / Polyester (multi-layered)✔ Temperature range: −30 °C to +140 °C✔ Fire protection: DIN 4102, Class B1 (flame retardant)✔ Bending radius: min. 0.54 × nominal diameterConstruction & material structure:✔ Multi-layer aluminium and polyester structure✔ Fully overlapping layers (“sandwich construction”)✔ Internal, concealed wire spiral for stabilityInstallation & application:The duct can be easily mounted on round and oval connectors and is especially suitable for:– Ventilation and exhaust systems– Air conditioning and ventilation systems– Connection lines to devices– Installations with changes of directionFixing is simple, e.g. with hose clamps or suitable connecting elements.Areas of use:– Residential ventilation– Commercial ventilation systems– Technical rooms– Industrial applicationsWith the Intelmann® Aluminium Flexible Duct, you receive a flexible, robust, and installation-friendly solution for modern ventilation systems where adaptability and stability are equally important.

Climate hose Fully flexible, lightweight, flame retardant Mechanically highly resilient Application length 10 metres Made of polyamide fabric with PVC coating on 2 sides and spiral wire welded into the fabric Resistance: good against acids and bases; moderate against many solvents Maximum operating pressure: + 3.000 Pa, maximum air speed 30 m/s Total thickness: 250 microns, wire spacing: 39 mm, temperature range: -30 to +80 °C Ventilation hose length 10 m, compressed to 0.6 m. Fully flexible with wire spiral. Hose absorbs vibrations in the long term. The hose is suitable for various applications. The air conditioning hose is made of polyamide fabric coated with PVC. The spiral wire is welded into the fabric, making it easy to fit to round and oval connectors. Hose fulfils all requirements specified in: EN 13180: "Ventilation for buildings - Air ducts - Dimensions and mechanical requirements for flexible air ducts". Temperature range: -30 °C to 80 °C Operating pressure: up to +3000 Pa Air velocity: max. 30 m/s Bending radius: min. 0.56 x Ø Standard length:10 m Total thickness: 280 gr/m² Colour: grey

The Sonodec 25 consists of a perforated aluminium laminate inner tube, an acoustic and thermal insulating wool layer and an aluminium laminate outer jacket. A barrier layer between the duct and the glass wool prevents the diffusion of glass wool particles. ApplicationVentilation systemsAir treatment installationsPreventing the formation of condensation in air treatment systemsReduction of installation noiseProperties: Temperature range:-30 °C to 140 °Coperating pressure:max. +2500 Paair velocity:max. 30 m/sbending radius:min. 0.54 x ∅ + 25 mmdiameter range:82 - 508 mmstandard length:10 mtr material:inner tube:aluminium/polyester laminatebarrier layer:plastic filminsulating wool blanket:25 mm, 16 kg/m³r-value:0.65m² K/W (ASTM C177-76)outer jacket:aluminium/polyester laminateappearance:aluminium