Oxygen-barrier PE-RT heating pipes are compounded with a layer of EVOH oxygen-proof layer (ethylene-vinyl alcohol copolymer) on the outside, which fully blocks oxygen from entering the pipeline system, prevents pipes and metal fittings in the heating system from corroding and rusting, and inhibits the The growth of microorganisms extends the service life of metal valves, switches, boilers, water collectors, etc.

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Because metal parts in the heating system such as boilers, water pumps, valves, heat exchangers, water distributors, and metal pipe fittings have a certain amount of oxygen corrosion during operation, which has a certain impact on the safety and economy of the heating system operation, and plastic pipes Oxygen permeability is one of the main causes of oxygen corrosion.

Ordinary plastic pipes such as PP-R, PE-X, PE-RT and PB have oxygen permeability, which increases with temperature. In order to achieve the purpose of blocking oxygen, a layer of gas barrier material - ethylene-vinyl alcohol copolymer (EVOH) is co-extruded on the surface of the pipe, and an adhesive is used between the EVOH and the PE-RT pipe to bond them. together.

Features:

1. The sufficient oxygen barrier layer has an EVOH oxygen barrier layer, which effectively prevents oxygen from entering the floor heating water system;

2. Good stability and pressure resistance. The pipe has good homogeneity, stable performance, and good thermal creep resistance;

3. Good impact resistance and safety, high and low temperature brittleness temperature can reach -65 degrees Celsius, and can be transported and constructed in low temperature environments;

4. The pipe is easy to bend and is convenient for construction. The bending radius is small and the stress in the bent part can be relaxed quickly; the hot-melt connection is easy to construct;

5. Aging resistance and long life. Under the conditions of working temperature of 65 degrees Celsius and pressure of 0.8MPa, PE-RT pipe can be used safely for more than 50 years.