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EVOH Multi-layer Oxygen Barrier Pipe Extrusion Line
Description
Advantages of JWELL Pipe Extrusion Line
- JWELL EVOH Multi-layer Oxygen Barrier Pipe Extrusion Line can produce pipe specifications cover Φ16mm to Φ160mm, and larger diameters can be customized;
- The modular design enables the production line switch between 3-layer and 5-layer structures by simply replacing a few modules;
- 3-layer and 5-layer
|
Type |
Structure |
Advantage |
Disadvantage |
Application |
|
3-layer |
Inner layer of substrate + adhesive layer + EVOH oxygen barrier outer layer |
Simple structure, low production threshold and low cost |
The EVOH layer is exposed and is prone to being scratched, getting damp, and undergoing UV aging, resulting in a rapid decline in its oxygen barrier performance |
Budget-limited, temporary / civilian scenarios |
|
5-layer |
Outer layer of substrate + adhesive layer + EVOH core oxygen barrier layer + adhesive layer + inner layer of substrate |
The EVOH layer is encapsulated by the base material, isolating it from moisture and mechanical damage, ensuring long-term stability of oxygen barrier performance |
The production process has high requirements and the cost is higher than three-layer structure |
High-end home floor heating, commercial heating, hot and cold water supply, and long-term operating industrial systems |
Advantages of EVOH Multi-layer Oxygen Barrier Pipe
- EVOH is a random copolymer of ethylene and vinyl alcohol. It combines the excellent processability of polyethylene with the exceptional barrier properties of polyvinyl alcohol. Its oxygen transmission rate at room temperature is merely one ten-thousandth that of ordinary PE/PP materials, making it one of the polymeric materials with the most outstanding barrier properties in commercial applications.
- EVOH resin has two inherent shortcomings: its barrier property drops significantly after moisture absorption, and it has poor compatibility with polyolefin substrates such as PE-RT and PP-R, making direct hot-melt lamination impossible. It must be compounded with a special adhesive resin and encapsulated inside the substrate to achieve long-term stable oxygen barrier performance.
- EVOH oxygen-barrier pipes can completely block oxygen from penetrating into the water circulation system, preventing oxidation and corrosion of boilers, manifolds, valves and metal fittings, and extending the service life of the heating system.
Oxygen Barrier Pipe Extrusion Line Applications
1
High-end residential & commercial underfloor heating systems:
oxygen barrier, anti-corrosion, anti-scaling and anti-bacterial/algae, longer system life.
2
Hot & cold water supply in high-end buildings:
safe, hygienic water supply, no secondary pollution.
3
Water circulation for solar water heating, air-source heat pumps and central AC:
protects core heat exchangers and reduces breakdowns.
4
Transport of clean media and special fluids:
prevents oxidation and spoilage, corrosion-resistant and bacteria-inhibiting.
Why Choose JWELL?
With over 25 years of expertise in plastic extrusion, JWELL Machinery is one of the largest manufacturers of plastic pipe extrusion lines globally. We provide turnkey solutions, including R&D, manufacturing, installation, and 24/7 after-sales support across our multiple production bases. Our equipment is exported to over 120 countries and regions worldwide, trusted by leading manufacturers for its reliability and efficiency.
FAQ
Q1. Can I operate the machine without experienced engineers?
A1. Yes. Our engineers provide training and supervision. Customers can also send engineers to our factory to learn machine operation and maintenance.
Q2. How are spare parts supplied?
A2. We use international brands (Siemens, Schneider, Omron, Delixi, etc.). Parts can be shipped via DHL, FedEx, TNT, or air freight.
Q3. How is after-sales service provided?
A3. Comprehensive service includes:
- 24-hour technical hotline and online troubleshooting
- On-site maintenance by engineers (travel expenses apply)
- Global warehouses stocked with commonly used parts
Q4. What is your annual production capacity?
A4. We manufacture over 3,000 advanced extrusion lines worldwide every year.
Q5. How do you ensure machinery and service quality?
A5. Our machines comply with European standards and German engineering practices. All equipment is tested before delivery, and quality management adheres to CE, ISO9001, and 2008 QMS standards.
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