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Benefits that satisfy

Find out more about the special advantages that make the VENTAFLEX® air duct system so powerful, efficient and economical.

 

Insulation/Heat protection

 

Comparison of structure and insulation

 

Comparison of thermal conductivity

 

Exemplary calculation for heat loss:

Diameter: DN500/600
Insulation: 50 mm
Area: 18.84 m²
Duct length: 10 m
Temperature difference: 30 K

Heat transfer coefficient:
VENTAFLEX® PUR rigid foam 0,022 W/mK
Folded spiral-seam pipe with mineral wool insulation 0,038 W/mK
Folded spiral-seam pipe with India-rubber insulation 0,040 W/mK

Heat loss =
Heat transfer coefficient x area x temperature difference / material thickness

VENTAFLEX® with PUR rigid foam insulation 249 W
Folded spiral-seam pipe with mineral wool insulation 430 W
Folded spiral-seam pipe with India-rubber insulation 453 W

 

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