Products Description
The 5-Layer EVOH PEX B Pipe features a symmetric structure: PEXB/bonding layer/EVOH/bonding layer/PEXB, with the EVOH layer encapsulated centrally for enhanced oxygen barrier integrity. Both variants utilize imported EVOH resin and are patented mould of Swiss Maillefer. The pipes undergo strict oxygen permeability testing (≤0.01 mg/L) and hydrostatic pressure validation.
Available Structures
5 Layer Oxygen Barrier Pipe (5 Layers PEX B EVOH)
① PEX-B Layer
② Adhesive Layer
③ EVOH Oxygen Barrier Layer
④ Adhesive Layer
⑤ PEX-B Layer
Product Information
Silane-crosslinked polyethylene (PEX-B ) + EVOH barrier layer
≤0.01 mg/L (ISO 17455 compliant)
-40°C to 95°C (long-term), 110°C (short-term)
0.69 MPa at 82°C; 1.0 MPa at 23°C
CNAS laboratory tested, ISO 9001, ASTM F876/F877
Products Description
Premium Materials & Technology
Utilizes imported EVOH barrier material and advanced production equipment with patented molds from Swiss Nokia-Maillefer, ensuring superior oxygen resistance.
Certified Quality
Rigorously tested and certified by authoritative organizations for oxygen barrier performance. Patented technology guarantees uniform layer thickness and consistent product quality.
Easy Installation
Excellent flexibility, wide bending radius, and high fluid-mechanical efficiency simplify and accelerate construction.
Applicable Scenarios
Radiator Heating Systems
Prevents corrosion in boilers and valves.
Underfloor Heating
Oxygen barrier ensures system longevity.
Solar Thermal Pipelines
Suitable for high-temperature solar water circulation.
HVAC Systems
Used in chilled water and heat exchange networks.
Technical Data
| Property | Value | Unit | Standard |
| Maxlmum usage temperature | 95 | ℃ | |
| Density | 0.9442 | G/cm³ | ASTM D-792 |
| Rate of thermal expanslon between0-70℃ | 1,9*10⁴ | k² | ASTM D-696 |
| Thermal conductivity | 0.41 | WK'm⁴ | DIN 52612-1 |
| Elasticlty of flexlon module at-40℃ at-0℃ at-23℃ |
498 312 183 |
N/mm¹ N/mm N/mm² |
DIN EN ISO 178 |
| Resilstanceto tractlon | 20 | N/mm² | ASTM D-538 |
| Elongation atrupture | 400% | ASTM D-538 | |
| Superflcial resistivity | >1012Ω | Ω | IEC 60093 |
Products Description
| DIN STANDARD PEX TUBING DIN 16893 | |||||||
| DN |
Outside diameter mm |
Mean outside diameter,mm | Wall thickness mm | ||||
| dem,min | dem,max | S6,3 | S5 | S4 | S3,2 | ||
| 16 | 16 | 16,0 | 16,0 | 1,3 | 1,5 | 1,8 | 2,2 |
| 20 | 20 | 20,0 | 20,0 | 1,5 | 1,9 | 2,3 | 2,8 |
| 25 | 25 | 25,5 | 25,5 | 1,9 | 2,3 | 2,8 | 3,5 |
| 32 | 32 | 32,0 | 32,0 | 2,4 | 2,9 | 3,6 | 4,4 |
| 40 | 40 | 40,0 | 40,0 | 3,0 | 3,7 | 4,5 | 5,5 |
| 50 | 50 | 50,0 | 50,0 | 3,7 | 4,6 | 5,6 | 6,9 |
| 63 | 63 | 63,0 | 63,0 | 4,7 | 5,8 | 7,1 | 8,7 |
| ASTM standard PEX tubing ASTM F876/F877/CTS-OD SDR9 | |||
| Nominal tubing size inch |
Dimension |
Operating pressure (PNMpa) and maximum working |
|
| Out diameter , inch | Wall thichness, inch | ||
| 3/8 | 0.500±0.003 | 0.070+0.010 | (1)PN=0.69Mpa(100psi), Tmax=82℃(180F) (2)PN=1.0mPA(145psi), Tmax=23℃(73F) |
| 1/2 | 0.625±0.004 | 0.070+0.010 | |
| 5/8 | 0.750±0.004 | 0.083+0.010 | |
| 3/4 | 0.875±0.004 | 0.097+0.010 | |
| 1 | 1.125±0.005 | 0.125+0.0013 | |
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