Skip to main content


The winner has been determined!

Mr. Stumpf congratulates Mr. Ziemann - one of the 5 winners.

The action was a full success. We like to thank all participants.

For all planners, plant constructors and interested people of VENTAFLEX® air guidance systems a great spring action took place from April 10th to May 9th.
You were able to win 5 original Lamzac. Mr. Stumpf was able to congratulate a winner personally on May 22nd 2018. Mr. Ziemann of the company Pötter accepted the price in Altenberge and is now looking forward to the open air season. 

The other 4 winners have already been informed and received their price by mail. Congratulations from us and we hope you enjoy your ‚air sofa‘.



VENTAFLEX catalog 2022

VENTAFLEX catalog 2022

All air duct products, technical details, supplies and installation instructions can be found in our general catalog.

Download pdf (15 MB)
Installation VENTAFLEX air duct round

Installation VENTAFLEX air duct round

  • Installation of VENTAFLEX air ducts with VENTASNAP and VENTAFIX
  • Glueing of VENTAFLEX air ducts
  • Installation of a compensator for the expansion compensation
Download pdf (742 KB)
Installation LAVANTUS air duct for underground

Installation LAVANTUS air duct for underground

  • Laying the air ducts
  • Length adjustment of air ducts

  • Installation LAVANTUS ring seal

  • Installation LavantusGrip

Download pdf (3 MB)


The change in energy policies demands a different technology

Read more

Projects where the client has the courage to realise new economic and ecological ideas are the "favourite challenges" of the VENTAFLEX team.

Read more

Every construction plan has its own challenges, because each project demands an individual solution.

Read more

The planning of complex systems is easier to manage when all necessary components needed for construction are detectable at a glance. That is the only way to put the actual perfect solution together.

Read more

The construction industry depends on a variety of external conditions – at the moment there are delays at many large-scale projects, because not only skilled workers, but also material is not...

Read more