Rifeng Multilayer PEX/AL/PEX pipes

Rifeng multilayer PEX/AL/PEX Pipes are structure for five-layer composite which materials from inside to outside are respectively PEX, adhesive, aluminium, adhesive, PEX, that combines the advantages of a metal and plastic pipe. The Aluminium core is preformed tight by overlapped welded or butt welded to reliably prevent oxygen or gases from permeating into pipe. Inner layer and outer layer of PEX material achieve over specified cross-linking degree. 

Complied with ISO 21003:2008 for cold and hot water supply and ISO 17484:2014 for gas installation, Rifeng multilayer PEX /AL/ PEX pipes are designed to be used under normal working pressure and temperature condition for 50 years. It offers a high degree of flexibility and toughness, coupled with high pressure and temperature resistance. It reduces snap-back force and minimizes thermal expansion.

Rifeng multilayer PEX/AL/PEX pipe could be used for hot and cold water supply, gas installation and air conditioning application. There are different colours for reference of outer and inner layers to indicate different application and to achieve specified performance. Normally, white, yellow and golden are widely accepted. Other colours like red, blue, purple, orange and be customized.