PEX идән җылыту торбасы vs бакыр / PE-RT торба

Low түбән температуралы якты идән җылыту системасында, торбалар кеше организмының кан тамырларына охшаган, җылылык эффективлыгына турыдан-туры тәэсир итә, энергия куллану һәм озак вакыт куллану тәҗрибәсе. With the advancement of material technology, PEX (crosslinked polyethylene) торба, copper pipe and PE-RT (high temperature resistant polyethylene) pipe have become mainstream choices. Бу мәкаләдә, we will compare the four dimensions of ‌ material characteristics, коррозиягә каршы тору, thermal conductivity efficiency and installation cost ‌ to help you make cost-effective decisions.

Башта, material comparison: сыгылучылык, life and environmental protection

1.‌PEX floor heating pipe: balance of flexibility and durability ‌

PEX pipes are crosslinked to form a three-dimensional mesh structure that combines the flexibility and strength of polyethylene. Its advantages include:

• ‌D.eformation resistance: -70℃~110℃ tolerance range, can resist the floor heating cycle cold and hot shock.
• ‌М.emory resilience: it can recover by itself after accidental flattening during construction to reduce the risk of leakage.
• ‌Environmental protection: no risk of heavy metal precipitation, in line with European Union RoHS standard.

2.C.opper pipe: the limitations of traditional metal pipe ‌

Copper pipe is known for its high thermal conductivity, but there are obvious shortcomings:

• ‌Н.igh hardness, difficult to bend: need a large number of joints, increase the potential leakage.
• О.xidation and electrolytic corrosion: especially in alkaline or sulfur-containing water easy to produce patina.
• ‌C.ost-sensitive: The price of raw materials is significantly affected by the fluctuations of international copper price.

3.‌PE-RT tube: the middle choice of cost-effective ‌

PE-RT improves temperature resistance through molecular structure modification, but compared with PEX:

• В.eak pressure resistance: it is easy to creep under long-term high temperature, and its service life is about 20-30 еллар (PEX can reach more than 50 еллар).
• ‌Л.imited application scenario: more suitable for low temperature heating system below 60℃.
• Йомгаклау: PEX wins in life and adaptability, especially suitable for complex pipe distribution.

Коррозиягә каршы тору: the ultimate test of water quality and environment

‌PEX tube: the king of chemical inertia ‌

No reaction to acid, alkali and salt solution (pH 2-12), chloride ions, no need to clean regularly.

Эш: 90% of the floor heating in Northern Europe uses PEX pipes to deal with high mineral groundwater without pressure.

Copper pipe: potential minefield of corrosion risk ‌

• E.lectrochemical corrosion: it is easy to form local battery effect in water with high oxygen content.
• С.ulfide corrosion: the water in some areas of China is high in sulfur, which is easy to form black copper sulfide scale.
• Хезмәт күрсәтү бәясе: need to add corrosion inhibitor regularly, annual maintenance cost of about 300-500  /100㎡.

‌PE-RT tube: stability is inferior to PEX‌

After long-term use, it may cause embrittlement due to oxidation, and the joint is easy to crack.

Йомгаклау: PEX is almost maintenance-free, especially suitable for complex water quality environment in China.

Thermal conductivity Efficiency: The misunderstood “metal advantage”

1.D.ata comparison ‌

MATERIALS	Rылылык үткәрүчәнлеге (W/m·K)	Measured heat dissipation efficiency(W/ m ²)
Copper pipe	380	85-90
PEX tube	0.41	75-80
PE-RT tube	0.38	70-75

2.Metal thermal conductivity ≠ actual advantage ‌

• Т.hermal inertia: copper pipe has strong heat storage, leading to slow temperature rise/cooling, which is not conducive to accurate temperature control.
• О.ffset by heat loss: the copper tube requires additional insulation (20% more cost), and PEX has low thermal conductivity.
• U.niformity: PEX tubes can be densely-coiled to compensate for thermal conductivity differences and achieve more balanced heat dissipation.
• Йомгаклау: The actual heating effect of PEX is close to that of copper tube, and the energy saving is improved by 10%-15%.

Урнаштыру бәясе: a money-saving code for hidden projects

C.omprehensive cost comparison (taking 100㎡ house as an example) ‌

Проект	PEX tube	Copper tube	PE-RT tube
Cost of materials	$4000	$12,000	$3,500
Labor	$2,500	$6000	$3,000
Maintenance fee (10 еллар)	$200	$3000	$800
‌Total cost ‌	‌ $6,700  ‌	$‌21000 ‌	$‌7300 ‌

‌PEX construction advantages ‌

• ‌С.ingle pipe continuous laying: no joint design to reduce 90% leakage points.
• Т.ool simplification: special clamping tool instead of copper pipe welding, shorten the construction period by 40%.
• Н.igh fault tolerance: support non-professional DIY repair (such as the use of hot melt sleeve).
• Йомгаклау: The comprehensive cost of PEX is only 1/3 of that of copper pipe, and the later maintenance is almost zero investment.

Final Choice: Why is PEX the future Trend?

1.Trends from industry data ‌

PEX will account for 68% of the global floor heating pipe market in 2025 (data source: GIA report).

The adoption rate of PEX in newly installed residential floor heating systems in China jumped from 32% .әр сүзнең 2015 to 79% .әр сүзнең 2025.

2.С.cenario-based recommended ‌

Preferred PEX‌: suitable for 90% of families, especially the transformation of old houses and complex units.

Carefully select copper pipe: It is only recommended for commercial places (such as gyms) with UHF start and stop, and soft water system is required.

‌PE-RT alternative: southern areas with extremely limited budgets and short heating seasons.

The iterative nature of underfloor heating pipe is an upgrade in user value — PEX achieves higher reliability at lower cost, which is the perfect combination of materials science and engineering wisdom.

Тапшыручы

Luoyang Datang Energy Tech Co., ООО. профессиональ торбалар һәм торбалар белән тәэмин итүче. Без PPR торбаларын тәкъдим итәбез, ПВХ торбалар, ЭЭМ торбалары, һәм идән җылыту торбалары һәм барлык төр торбалар өчен җиһазлар, югары сыйфатлы һәм конкурент бәяләр белән. Торбалар һәм җиһазлар турында соравыгыз булса, зинһар, безнең белән элемтәгә керергә курыкмагыз. You can click on the product to get in touch with us.