PEX-Al-PEX Multilayer Pipes Main Characteristics

Thermal and pressure resistant

Absolutely diffusion tight

The aluminum core is continuously overlapped or butt-welded and prevents oxygen/gases from permeating into the PEX pipe. Consequently, the corrosion of metallic installation components is avoided.

Burning resistant

The PE(X)-AL-PE(X) composite structure makes Ardi pipe a much better burning resistance than polyethylene pipe. Tested by the State Quality Supervision Test Center for Fireproofing Building Material, the burning resistance of Ardi pipe measures up to Grade B1 of GB8624, stipulations for wire and cable conduit plastic material.

PEX-AL-PEX Corrosion resistant

The smooth inner and outer plastic layers hold water at bay- preventing deposit accumulation and corrosion. At normal temperature, it can withstand all kinds of acid, alkali, and salt solution.

Low thermal conductivity

0.45W/m.k, about 1/100 of the steel PEX-AL-PEX pipe’s, more suitable for hot water supply than metal pipe.

Hydraulic Function

The inner roughness of Ardi PEX-AL-PEX pipe is 0.007mm. The inner is very smooth that makes Ardi pipe ideal for liquid (like water) supply.

Pressure resistant and long service life

The diagram shows that Ardi PEX-AL-PEX tube will last you 50 years of operation under the set conditions and pressures. The forcing aging test by the Synthetic Materials Research Institute of Ministry of Chemical Industry has proved it as well.

PEX-AL-PEX Installation

Freely bent by hand without tools, making the use of numerous fittings unnecessary. Because of the metal/plastic composition, Ardi PEX-AL-PEX tube remains in position after bending.

Low heat expansion (see graph)

25x10 -6 m/m.k, only 1/8 of polyethylene pipe’s, almost same to aluminum pipe’s. The permanent bond of plastic layers to the aluminum considerably reduces heat expansion.

50 m. pipe, expansion at 50°C temp. difference.