Wirsbo-pePEX is a further development of Wirsbo-PEX
pipe with an oxygen diffusion barrier of PVOH (polyvinyl
alcohol). The PVOH layer is glued to the Wirsbo-PEX
pipe with a special adhesive polyethylene film. A mechanical
protective layer of PEX is also applied to the outside
of the diffusion barrier.
Wirsbo-pePEX denotes Wirsbo-PEX pipes with oxygen diffusion
barriers of PVOH (polyvinyl alcohol). In heating systems,
oxygen molecules can diffuse (migrate) through the wall
of the pipe and oxygenate the water. Wirsbo-pePEX pipes
are, therefore, provided with diffusion barriers.