Уз континуирано побољшање животног комфора људи и потреба за потрошњом енергије у зградама, традиционално радијаторско грејање постепено се замењује системом подног грејања. Међу многим материјалима цеви за подно грејање, ПЕКС цеви (cross-linked polyethylene pipe) has become the “blood vessel” choice for plumbing and floor heating systems due to its excellent physical properties and engineering adaptability.

How is PEX pipe manufactured?

By using chemical or physical methods to form a ‘three-dimensional network structure’ in polyethylene molecular chains, ordinary plastic is upgraded into engineering pipes that are resistant to high temperatures, притисак, creep, and frost expansion.

Three Major Cross-Linking Processes

PEX-a (Peroxide Method): Cross-linked simultaneously at high temperature during extrusion, with the highest degree of cross-linking (70%~85%), offering the best flexibility and shape memory.
PEX-b (Silane Method): Cross-linked by curing in hot water/steam after extrusion, featuring low equipment requirements and high cost-effectiveness, with the largest market share.
PEX-c (Radiation Method): Finished pipes are cross-linked through electron beam irradiation, with no chemical residues and a uniform structure, mostly used for high-standard projects.

Underfloor heating is an efficient heating system.

The floor heating system distributes heat evenly to the floor, which then radiates the heat into the room. Обично, a layer of thermal insulation is installed beneath the heating elements to prevent heat loss. The system may take longer to heat up compared to traditional radiators, but it retains heat longer after being turned off, providing continuous comfort.

Why do underfloor heating systems prefer PEX pipes?

The floor heating system is divided into water heating and electric heating according to the heat source medium. PEX pipes are specifically used for water floor heating.

The low-temperature radiant heating characteristic of floor heating (with supply water usually between 35~55℃) happens to fall within the optimal operating range of PEX, forming a ‘low temperature, high efficiency, and material durability’ golden combination.

Core Advantage：

• Temperature and Pressure Resistance: Long-term operating temperature of 60–70°C, can reach 90°C for short periods; pressure resistance of 1.0–1.6 MPa, fully covering underfloor heating conditions.
• Frost Resistance: The pipe body can elastically deform when water freezes and expands, and is not easily broken after thawing.
• Smooth Inner Wall: Low hydraulic resistance, није лако скалирати, heat transfer efficiency increased by 15%~20%.
• Chemical Inertia: Resistant to acids and alkalis, resistant to chloride ion corrosion, suitable for various water qualities and antifreeze solutions.
• Lifetime Guarantee: According to ISO 15875/GB/T 18992.2 стандарди, the designed service life is≥ 50 године.

The application of PEX pipes in plumbing and underfloor heating has evolved from ‘a single material replacement’ to ‘thermodynamic system integration.’ Its value lies not only in the pipe’s own temperature and pressure resistance but also in the complete closed loop formed with insulation structures, hydraulic design, and heat source control. Choosing the right oxygen barrier pipe, controlling loop pressure properly, strictly following backfill regulations, and maintaining closed water systems are key to delivering ‘half a century of silent warmth.’ Against the backdrop of the dual-carbon targets and the continuous upgrading of building energy efficiency standards, PEX underfloor heating is shifting from an improvement-oriented configuration to the fundamental infrastructure of new residential and public buildings, becoming an invisible cornerstone of a low-carbon living environment.

Профил компаније

Luoyang Datang Energy Tech Co., доо. је водећи кинески произвођач специјализован за висококвалитетне пластичне цеви и фитинге. Опремљен најсавременијим аутоматизованим производним линијама и подржан од стране тима 200 професионалци, нудимо широку линију производа која се састоји од преко 150 врсте пластичних цеви и фитинга намењених за системе водоснабдевања и одводње, пренос гаса, и системи подног грејања. Наши главни производи укључују ПВЦ цеви и фитинге, ПЕ (ХДПЕ) Цеви и фитинзи, ППР цеви и фитинги, и ПЕКС цеви за подно грејање.

Ако имате било каквих питања у вези са прикључком за ХДПЕ цеви, молимо не оклевајте да нас контактирате!

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