Flue pipe
Single wall system


Metallic flue pipes Isoblank

The ISOBLANK system is composed of double-walled circular section elements. It is able to guarantee an excellent resistance to corrosion and to withstand a maximum temperature of the combustion products of 600 ° C. The insulation of the elements is made with a 10 mm thick white mat, free of binders, obtained by a double needle-punching process starting from biosoluble fibers based on alkaline earth silicates. The inner wall is made of AISI 316L stainless steel. The ISOBLANK elements are equipped with a male-female socket with a cup, a heat-resistant gasket and a safety clamp that guarantees the mechanical seal. The product can also be made with an external stainless steel wall painted in one of the RAL colors.

Twin wall flue System ISOBLANK

The features of this system are quoted in the “Declaration Of Performance – D.O.P” (to download the D.O.P simply click on the image at the bottom of this page). A full comprehension of the D.O.P ensures a correct use of this product. Should you need further information please feel free to contact us.


The symbols P1, W, V2, clearly quoted both in the label affixed on the pipe and in the D.O.P. (Declaration Of Performance), unequivocally indicate that this particular flue system is definitely suitable for condensing state-of-the-art boilers.


Its installation and matching with various boilers must be left to skilled professionals that will respect the standards and laws in effect.
This product will be the installer’s or designer’s first choice since it can be perfectly matched with:

Flue pipe

Twin wall system ISOBLANK

With seal


Without seal



Methane gas


Steams of cooking

Diesel oil


Complies with UNI EN 14961-2


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