Alpex-duo XS is a multilayer composite pipe (MLCP) available in coils. It features an inner surface made of cross-linked polyethylene (PE-Xb), a butt-welded aluminium core, and an outer surface made of stabilised polyethene (PE-HD). This pipe is suitable for drinking water and heating system installations. It can handle a maximum constant operating pressure of 10 bar and a maximum continuous operating temperature of 95°C.