ISO-Flange and Gebhardt ISO-PVC

The Gebhardt ISO flange and ISO PVC are ideally suited for the internal insulation of air ducts.

The use of the flanges prevents the formation of thermal bridges. Temperature losses between the inner and outer walls of the air duct system are thus counteracted. In addition, the combined use of the ISO flange and the ISO-PVC can reduce sound development in the air duct system.

The Gebhardt ISO-PVC is suitable for use with both the flange S20 ISO and flange S30 ISO.

Further insulation thicknesses for the ISO-PVC are available on request.

ISO Flange

  • S20 ISO

    • Art.-No.: 301600010
    • Galvanised steel
    • Lengths 5m, VE 500m
    Gebhardt-Stahl GmbH
  • S30 ISO

    • Art.-Nr.: 301610010
    • Galvanized steel
    • Lengths 5m, VE 500m
    Gebhardt-Stahl GmbH

Gebhardt ISO-PVC


    • Art.-No.: 301900020
    • Insulation strenght 20 mm
    • Lengths 2,5m, PE 250m, Palette 5.000m
    Gebhardt-Stahl GmbH




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Gebhardt-Stahl GmbH

We have been manufacturing cold-rolled metal sections in Werl for more than 30 years. We’re an innovative medium-sized enterprise and focus on the production of steel reinforcement sections for PVCu windows, HVAC components, steel vineyard stakes and bespoke profiles.

Gebhardt-Stahl GmbH

Runtestraße 33
59457 Werl+49 (0) 29 22 / 97 33 - 0

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