This oxygen barrier pipe production line is used to produce 3 layer type PEX/EVOH oxygen barrier pipes. The line speed is up to 30m/min with top technology.
PEX stands for cross-linked polyethylene. Technically refere to as a silane process, but is more often called steam or moisture cross-linking. The cross-link is done after the HDPE is extruded into tube. The put finished product in hot steam container, and keep warm for certain time.
The PEX pipes with oxygen barrier is are co-extruded with 3 extruder, for that three different layer materials, inner PEX, middle adhesive, and outer oxygen barrier.
External coating of oxygen barrier PEX pipe effectively prevents diffustion of oxygen molecules into the water through walls of the pipe. This feature prevents corrosion of cast iron components in the water system, and allows using it in hot water hydronic heating applications, including baseboard, radiator he ating, fan coils, radiant floor heating and snow melting applications.