This oxygen barrier pipe production line are used to produce 3 or 5 layer type Polybutylene PB/EVOH oxygen barrier pipes.
Polybutylene pipe, also known as PB or Poly-B pipe, features a great flexibility and is a common type of plastic piping which is suitable for hot and cold water and central heating installations as a flexible alternative to copper in both hard and soft water areas. Polybutylene pipe is lightweight and flexible, and its soft material is especially handy for long runs, as it's very easy to bend.
Oxygen Barrier is a layer of special polymer, abbreviated EVOH, which is typically applied to the external surface or in the middle of the PB pipe. The EVOH oxygen barrier layer protects the PB tubing from the diffusion of oxygen molecules into the water of the radiant heating or hydronic heating system and significantly reduces the corrosion of common cast iron components such as circulator pumps.