PEX Pipe
Product Features
HAILI PEX-a pipe production scale is the largest in China. It has been selected as "the leading brand in China for the ground source heating industry", "China's famous brand in the plastic pipe industry" and "the recommended product of the in-floor heating industry". Thanks to the strictly monitored transportation of our raw and auxiliary materials, rigorous testing process and strict factory test controls helps to make us the best PEX-a supplier in China.
Product Characters
- Importing LG Chem HDPE XL1800 material, AkzoNobel cross-linking agent from the Netherlands, German BASF antioxidant, warehouse to warehouse transportation, ensures no contamination on materials.
- All PEX-a products are manufactured by the Engel Method Process. Applying fully-enclosed automatic raw material feeding system to protect all raw materials from being contaminated.
- Daily output of 150,000 linear meters, means we can satisfy the large demand of our customer's needs.
- All production lines equipped with a meter measure device to ensure sufficient length of the pipe.
- Good product traceability. The produced date and on-duty staff is shown on the qualified marks.
- We adopt advanced packaging methods, which protects our products from ultraviolet radiation and also ensures no damage before installation.
- Sound quality control system with German IPT testing equipment. Three-Grade-inspection test system. The coverage of cross-link degree test is 100%, each coil passed air pressure test.
- Maintains long-term and frequent technical communication with raw material suppliers in Europe and Asia which guarantees our technical leadership.
- Products are certified by CE, WaterMark, NSF, GOST, ICC-ES, etc., and strictly comply with standards of ISO 15875.
Physical and Chemical Characters
| Item | Testing parameter | Result | ||
| Hydrostatic pressure test | Test temperature (°C) | Test time (h) | Hydrostatic stress (MPa) | |
| 20 | 1 | 12 | No breakage No leakage | |
| 95 | 1 | 4.8 | ||
| 95 | 22 | 4.7 | ||
| 95 | 165 | 4.6 | ||
| 95 | 1000 | 4.4 | ||
| Under hydrostatic thermal stability test | 110 | 8760 | 2.5 | No breakage No leakage |
| 5000 times cool-heat cycle | 20-90 | - | System pressure 0.6 MPa | |
| Cross linking degree | ≥70% | >70% | ||
| Longitudinal reversion | ≤3% (120°C, e≤8mm, three samples) | <3% | ||
Executive standards:
EN ISO 15875, EN ISO 21003, AS/NZS 2492, DIN 16892/16993
PEX-a Pipeline
Product Structure
Product Characters
●Adopt LG Chem HDPE XL1800 material, warehouse to warehouse transportation, ensures no pollution on material.
●Excellent resistance to high and low temperature:
●Extreme high operating temperature up to ( 110^circ C ).
●Lowest operating temperature can reach -50°C.
●5-layer EVOH pipe has a unique anti-scratch protection layer to prevent the EVOH layer's damage during transportation and installation.
●Oxygen permeability <0.1 mg/L·day, ensures system longevity.
Inhibits the growth of bacteria, resistant to scaling/pitting or buildup of pipe wall, maintaining heat transfer efficiency throughout the system's life.
●Delays thermal oxidation caused by high-temperature oxygen permeation of the pipe wall, avoiding age acceleration of the heating system.
●Excellent anti-creep rupture strength and high-temperature stability.
●Significant shape memory ability to self-recover.
●Effective protection on heating equipment and systems against oxygen corrosion damage.
PEX-a Pipeline Specification
| Outer diameter DN.mm | Thickness mm | ||
| S5 | S4 | S3.2 | |
| 16 | - | 2 | 2.2 |
| 20 | 2 | 2.3 | 2.8 |
| 25 | 2.3 | 2.8 | 3.5 |
| 32 | 2.9 | 3.6 | 4.4 |
| 40 | 3.7 | 4.5 | 5.5 |
| 50 | 4.6 | 5.6 | 6.9 |
Executive standards:
EN ISO 15875, EN ISO 21003, AS/NZS 2492, DIN 16892/16893
PEX-a Oxygen Barrier Pipeline
▲Great durability on high temperature and high pressure
In 70°C hot water system, max working pressure can reach 1.0 Mpa.
Superior thermal stability:
Compared with other plastic pipes, PE-Xa demonstrates significantly better performance in pressure endurance and temperature endurance.
▲Resist to scratch and abrasion
The cross-linking molecular structure is much more compacted, and makes the pipe has better resistance against wear and tear. If there are small scratches on the pipe wall, the cross-linked three-dimensional structure would form a protective cover on the damaged part, and stop the scratches keeping deepened, ensures systems safety and perdurability.
▲Conform with international standards, hot sale in European and America.
Our PE-Xa pipe system get four internationally recognized top certificates, hygienic and non-toxic, in hot selling to European and America, widely used in the most severe drinking water system in developed countries.
▲Superior materials memory and elasticity
Superior materials memory characteristic enables an ultra-strong recover ability, more scientific and standardized installation process with a much more reliable connection quality. Respond to the pipes knits or other deformation, it can be non-destructively restored by hot air heating gun, saving time and effort.
PEX-a Red&Blue Pipeline
| Outer diameter DN.mm | Thickness mm | ||
| S5 | S4 | S3.2 | |
| 16 | - | 2 | 2.2 |
| 20 | 2 | 2.3 | 2.8 |
| 25 | 2.3 | 2.8 | 3.5 |
| 32 | 2.9 | 3.6 | 4.4 |
| 40 | 3.7 | 4.5 | 5.5 |
| 50 | 4.6 | 5.6 | 6.9 |
▲Residential hot/cold water system
“1+ ”PE-Xa residential water system and PPSU quick easy fittings, creating a cleaner and more convenient modern life for you.
▲Health and safety, like caring for a baby
Fitting material: Secured PPSU plastic, commonly used for manufacturing: Feeding bottles/Drinking cups /Utensils
Thermal resistance: Up to 207°C, with excellent performance in: Safety/Thermal stability /Hydrolysis resistance /Impact resistance
▲Quick and easy connection, adopts international standards' process
Installation steps: 1. Cut 2. Slide 3. Expand 4. Insert 5. Standing for 30 seconds
Features:
Applies standardized mechanical technology
No hot melting required
Not affected by uncontrollable factors (e.g., manual operation differences)
More convenient and reliable
Supports partial heating maintenance, dismantling, and alteration
Lower cost
▲Pipes & rings double locked, solid and safe
Small ring, big function:
Acts as the connection part between pipes and fittings.
Provides greater pressure capacity and higher safety coefficient.
Ensures a solid and secure joint for enhanced system reliability.
FAQ
1. What is the difference between PEX-a and regular PEX pipe?
PEX-a is manufactured using the Engel method, which gives it the highest degree of crosslinking among PEX types. This results in superior flexibility, kink resistance, and durability compared to standard PEX (such as PEX-b or PEX-c).
2. Is PEX-AL-PEX better than PEX-a pipe?
PEX-AL-PEX has a unique aluminum core that provides shape memory and rigidity, making it ideal for applications where minimal thermal expansion and pipe memory are needed (e.g., radiant floor heating). However, PEX-a is better for tight bends and cold environments due to its flexibility.
3. Can PEX pipes be used for both hot and cold water?
Yes, all types of PEX pipes are suitable for both hot and cold water supply. PEX-a and PEX-AL-PEX typically offer higher temperature and pressure resistance.
4. Which type of PEX is best for radiant floor heating?
While PEX-a is widely used due to its flexibility, PEX-AL-PEX is often preferred for radiant floor heating because of its structural stability and reduced expansion under heat.
5. Are PEX pipes safe for drinking water?
Yes, most PEX pipes are certified for potable water use. Be sure to check that the product is NSF-certified or meets local plumbing standards.
6. How long do PEX pipes last?
When installed correctly, PEX pipes can last over 50 years under normal residential or commercial use.
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