Flexible Copper Round Pipe 8mm-22mm OD, 0.5mm Wall, Solar Thermal
Energy Systems
flexible copper round pipes (8mm–22mm OD, 0.5mm wall thickness) are engineered for
high-efficiency solar thermal energy systems. Designed to withstand
extreme temperature fluctuations and UV exposure, these seamless
pipes optimize heat transfer in solar collectors, heat pumps, and
renewable energy installations. Manufactured from
phosphorus-deoxidized copper (Cu-DHP), they combine flexibility for
easy installation with corrosion resistance, ensuring long-term
reliability in both residential and industrial solar applications.
2. Technical Specifications
| Parameter | Details |
|---|
| Material | Cu-DHP (Copper ≥99.9%, Phosphorus 0.015–0.04%, Lead ≤0.005%) |
| Standards | EN 1057, ASTM B88, ISO 1337, SOLAR KEYMARK |
| OD Range | 8mm (≈0.31") – 22mm (≈0.87") |
| Wall Thickness | 0.5mm (±0.02mm tolerance) |
| Temper | Soft (Annealed) for superior bendability without kinking |
| Max Temperature | 200°C (392°F) continuous operation |
| Certifications | ISO 9001, SOLAR KEYMARK, RoHS, TÜV SÜD |
| Applications | Solar water heaters, heat pump connections, geothermal loops,
parabolic trough systems |
3. Competitive Advantages
① Solar-Specific Design
Optimized for solar thermal efficiency, our pipes minimize heat
loss and maximize energy absorption in collectors.
② Precision Manufacturing
Cold-drawn seamless production ensures uniform wall thickness and
smooth surfaces, critical for high-pressure glycol or water
circulation.
③ Corrosion Resistance
Cu-DHP material resists scaling and degradation from antifreeze
solutions, acidic rainwater, and saline environments.
④ Custom Coil Lengths
Available in coils up to 50 meters for rapid installation in
large-scale solar farms or rooftop arrays.
⑤ Global Compliance
SOLAR KEYMARK certification guarantees compliance with EU solar
thermal standards, simplifying project approvals.
4. Key Applications
- Solar Collectors: Flexible tubing for evacuated tube and flat-plate solar water
heating systems.
- Residential Solar: Compact piping for rooftop solar thermal installations and
domestic hot water circulation.
- Industrial Preheating: High-temperature loops for industrial process heating or
agricultural drying systems.
- Heat Pump Integration: Durable connections between ground-source heat pumps and
geothermal boreholes.
- Parabolic Troughs: Precision-bent pipes for concentrated solar power (CSP) plants
and renewable energy farms.
Why Partner with JIANGSU CHINA STEEL UNION INDUSTRIAL CO., LTD?
We specialize in delivering high-performance copper solutions
tailored to renewable energy challenges. Our flexible pipes are
trusted by solar engineers and green energy developers to enhance
system efficiency, reduce carbon footprints, and withstand decades
of demanding operation.
FAQ
1. Who are we?
Our headquarters is located in Jiangsu, China. Since 2010, we have
sold to the domestic market (30.00%), North America (10.00%), South
America (10.00%), Southeast Asia (10.00%), South Asia (10.00%), and
Africa (5.00%) , Middle East (5.00%), Central America (5.00%),
Northern Europe (5.00%), Oceania (3.00%), Western Europe (3.00%),
Southern Europe (2.00%), Eastern Europe (00.00%), East Asia
(00.00%) . There are approximately 11-50 people in our office in
total.
2. How do we ensure quality?
There are always pre-production samples before mass production;
Always conduct final inspection before shipment;
3. What can you buy from us?
Copper Alloy Sheet,Copper Round Rod, stainless steel pipe,
stainless steel coil, stainless steel strip, wear-resistant plate,
galvanized steel plate
4. Why should you buy from us instead of other suppliers?
The company introduces advanced technology and equipment, and its
products are exported to Western countries such as the United
Kingdom and the United States. It has strong technical force and
experienced technical and management personnel.
5. What services can we provide?
Accepted delivery terms: FOB, CFR, CIF, EXW;
Accepted payment currencies: USD;
Accepted payment methods: T/T, L/C, cash;
Languages spoken: English, Chinese
