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Since the new EU legislation for the manufacturing of ventilation ducts, it is mandatory to make Watertightness test in the manufactured ducts.

Having a bad watertightness index in a network of ducts implies overloading of the ventilation machine, An increase in acoustic discomfort and a loss in the system’s thermal efficiency.

That’s why A.C.Criptana has tested it’s circular and rectangular ducts getting the best performance for watertightness resistance:

Circular duct:

Class D for Rubber seal

Rectangular duct:

Class C for duct with thickness 0.6 mm, 0.8 mm, 1 mm, 1.2 mm

Also, we offer our clients the possibility of making watertightness tests on site through our qualified personnel according to UNE EN 1507 norm for rectangular ducts and UNE EN 12237 for circular ducts. We have a lindab LT600 equipment available to make watertightness tests in factory and on site.

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