Answer:
The compressive strength of the Profiles and seals enables the hollow spaces to be used for this purpose. There are however restrictions: 1. Water
Fresh water containing oxygen must not be allowed to flow through extruded profile sections made of wrought aluminium alloy such as ours. The oxygen present in the water would rapidly react and cause intercrystalline corrosion, i.e. the molecular structure of the metal would quite simply be dissolved. Leakages in these "waterworks" will provide the first indication of corrosion, the strength of the material will be rapidly reduced. Only completely stagnant "dead" water in an enclosed system can be conducted through profiles without such risks. 2. Oil
In this case, it is the seals that might suffer. The material from which the seals are made, polyethylene, and the adhesives used, are not resistant to prolonged contact with oils and their additives. This will result in leakage at the joints. The answer here might be the use of suitable sealants but these are not included in the range of products available from item. Practical tip:
Clearly mark the Profiles you are using as compressed air ducts. It is all too easy to drill a hole in the wrong place or loosen a joint, which then results in hours of searching for the leak!
If you have further technical queries about our products please do not hesitate to contact your local distributor or simply send a mail to info@item.info | 
