PEX Underfloor Heating Pipe

DONSEN PEX is a type of pipe material widely used in underfloor heating systems, known for its excellent thermal conductivity. Below is a detailed description of why PEX materials have good thermal conductivity.

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1.The thermal conductivity of PEX pipes is influenced by their material structure.

PEX pipes are manufactured using cross-linking technology on polyethylene. This cross-linking process involves subjecting polyethylene molecular chains to high temperatures and pressures, resulting in a cross-linked structure. This cross-linked structure increases the density and tightness of the molecular chain arrangement in PEX pipes, thereby improving their thermal conductivity. Compared to non-cross-linked polyethylene pipes, PEX pipes have lower thermal resistance and can transfer heat more rapidly.

2.PEX pipes have a low thermal coefficient.

The thermal coefficient is an important parameter for measuring the thermal conductivity of materials, representing the amount of heat conducted through a unit thickness of material in a unit of time. PEX pipes have a low thermal coefficient, typically ranging from 0.37-0.42 W/(m·K). This means that PEX pipes have minimal heat loss during heat conduction, allowing them to efficiently transfer heat to the floor and provide effective heating.

3.PEX pipes have good heat conduction capability.

Heat conduction capability refers to the ability of a material to conduct heat internally and is closely related to its thermal conductivity. The tight cross-linked molecular chains in PEX pipes form a uniform and continuous structure, allowing heat to be rapidly transferred within the pipes. Compared to other materials, PEX pipes can more effectively distribute heat throughout the underfloor heating system, achieving rapid heating effects.

4.PEX pipes have good thermal stability and resistance to aging.

In underfloor heating systems, pipes are subjected to high-temperature hot water over extended periods, requiring high thermal stability and resistance to aging. PEX pipes, manufactured using polymer cross-linking technology, exhibit good heat resistance and oxidation resistance, enabling them to withstand high-temperature environments without being easily affected by thermal stress or environmental factors. They maintain long-term stability and reliability.

In summary, the reasons why PEX is a pipe material with good thermal conductivity in underfloor heating systems are as follows: the cross-linking technology on polyethylene forms a tightly cross-linked structure, improving the density and molecular chain arrangement of the pipes, thereby enhancing thermal conductivity; PEX pipes have low thermal coefficients, allowing them to rapidly transfer heat; PEX pipes have good heat conduction capability, ensuring even distribution of heat throughout the underfloor heating system; moreover, PEX pipes possess good thermal stability and resistance to aging, enabling them to withstand prolonged usage in high-temperature environments. These characteristics make PEX an excellent pipe material for underfloor heating systems, providing efficient, stable, and reliable heating effects.

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