PEX A EVOH Pipe

Introduction

PEX-a EVOH pipe represents the evolution of cross-linked polyethylene tubing, specifically engineered for closed-loop hydronic heating systems such as underfloor heating and radiator connections. The "a" designation refers to the Engel method of cross-linking, where peroxide is introduced during manufacturing to create molecular bonds between polyethylene chains. This results in a more uniformly cross-linked structure compared to other PEX types.

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Key Advantages of PEX-a EVOH Pipe

Superior Flexibility: PEX-a pipes offer greater flexibility than PEX pipes cross-linked by other methods. They can be cold-bent and curved easily without special tools, reducing required installation space and saving significant time during installation .

Excellent Thermal Memory: PEX-a exhibits outstanding thermal memory, meaning that even if the pipe becomes kinked during installation, gentle heating with a heat gun will restore it to its original shape without compromising integrity .

Corrosion Resistance: The combination of PEX-a material (which inherently resists chemical attack) and the EVOH oxygen barrier ensures that neither the pipe nor the system components will suffer from corrosion-related failures .

Smooth Interior Surface: The pipe's smooth bore minimizes flow resistance and prevents scale accumulation.

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