Flexible flue ducts are used in flue and chimney technology, particularly for chimney renovations (e.g. in the event of chimney sooting) or when it is necessary to reduce the cross-section of existing chimneys. They are extremely elastic and pliable, which makes them very flexible. Existing offsets in the masonry chimney or even slanted ducts do not pose a problem when renovating a chimney with flexible ducting, as the ducts adapt flexibly to the structural conditions on site.
Flexible flue ducts manufactured with HAFLEX duct winding machines are typically suitable for all fuel types (oil, gas and solid fuels), resistant to moisture, extremely corrosion-resistant and soot fire-resistant.
On site, the flexible ducts can be simply connected using special connectors or easily combined with other fixed fittings.
You can produce all the flexible ducts required for a chimney renovation yourself with HAFLEX duct winding machines; in your warehouse, in your own workshop or even in a vehicle on site! Flexible ducts made with HAFLEX duct winding machines lead the way in terms of technology and quality and set the standard in markets worldwide.
HSW 992S duct winding machine for manufacturing flexible chimney liner ducts
+ Compact and economical machine
+ Simple operation
+ Very high production speed
+ For gaseous, liquid and solid fuels
+ For negative and positive pressure operation
+ For wet and dry operation
+ CE tested according to DIN EN 1856-2
+ Strip thicknesses from 0.08, 0.10 and 0.12 mm
+ Gas- and water-tight
+ No leaks even at high operating pressure
+ Quick-to-install conversion kits for producing aluminium ducts for ventilation technology
+ Quick-to-install conversion kits for flexible silencers
+ Quick-to-install conversion kits for rigid folded spiral ducts
HSW 870S duct winding machine exclusively for manufacturing flexible chimney liner ducts from stainless steel
+ CE tested as 992S
+ Special economical strip profile for single and double-layer ducts
+ No conversion kit for other duct types
HSW 904G duct winding machine for manufacturing flexible internally smooth ducts for flue and chimney technology.
+ Extreme tensile strength
+ Outstanding bending properties, inner strips do not open up during bending
+ European approval for all applications
+ Inside and outside can be made of different materials and strips
+ Main area of application: Flue technology
+ Simple operation
+ High production speed
+ Conversion kits for producing internally corrugated stainless steel chimney liner ducts
Quick-to-install conversion kits for
+ Internally smooth aluminium ducts for ventilation technology
+ Corrugated aluminium ducts
+ Flexible silencer
+ Rigid folded spiral ducts