Ventilation technology

Spiral ducts and the matching fittings from the HYDRA® product range for air-conditioning and ventilation facilities in buildings are manufactured according to the state of the art. The fittings can be installed with either an O-ring gasket or a lip seal.

They are manufactured from roll-galvanised sheet steel in a process that reduces the impact on the environment and offers outstanding corrosion protection.

The large variety of components and dimensions and a very well stocked warehouse ensure short delivery times.

Examples of products

Examples of products


Witzenmann Opava

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