Sheathed Copper Tubing for Industrial Applications
Sheathed copper tubing is widely used in industrial, HVAC, gas and plumbing systems where protection against corrosion, moisture and mechanical damage is essential. These tubes combine the strength and conductivity of copper with an outer protective sheath, ensuring durability and long service life.
Across modern industries, sheathed copper tubing is preferred for applications that require enhanced protection and reliable performance under harsh environmental conditions.
What is Sheathed Copper Tubing?
Sheathed copper tubing refers to copper tubing covered with an external protective layer such as PVC or polymer sheath. The copper provides structural strength and excellent thermal conductivity, while the sheath protects the tubing from environmental exposure and damage.
These tubes are available in straight lengths and coils depending on installation requirements.
Why Use Sheathed Copper Tubing?
Industrial systems require materials that can withstand corrosion and mechanical stress. Sheathed copper tubing provides an additional layer of protection while maintaining performance efficiency.
Key Advantages of Sheathed Copper Tubing
- Excellent corrosion resistance
- Protection against moisture and chemicals
- High durability and long service life
- Reduced risk of external damage
- Reliable performance in harsh environments
Copper Grades Used in Sheathed Copper Tubing
These tubes are typically manufactured from:
- C12200 – Phosphorus-deoxidized copper
This grade ensures excellent durability and performance in industrial applications.
Standards Applicable to Sheathed Copper Tubing
The tubing generally complies with the following standards:
- ASTM B68 – Seamless copper tube
- ASTM B75 – General purpose copper tubing
- ASTM B280 – Copper tubing for HVAC and refrigeration
- EN 1057 – Copper tubes
Sizes Available for Sheathed Copper Tubing
| Outer Diameter (mm) | Wall Thickness (mm) | Typical Application |
|---|---|---|
| 6 mm | 1.0 | Instrumentation lines |
| 8 mm | 1.2 | HVAC systems |
| 10 mm | 1.5 | Refrigeration systems |
| 12 mm | 1.5 | Industrial piping |
Pressure Performance of Sheathed Copper Tubing
Sheathed copper tubing provides excellent pressure handling capability. The copper core ensures strength, while the outer sheath enhances protection against environmental conditions.
Manufacturing Process of Sheathed Copper Tubing
The tubing is manufactured using seamless extrusion followed by cold drawing to achieve precise dimensions. The sheath is applied using extrusion coating techniques to ensure uniform thickness and adhesion.
Each tube undergoes inspection and testing to meet industrial standards.
Joining Methods for Sheathed Copper Tubing
Approved joining methods include:
- Brazing
- Compression fittings
- Flared connections
Applications of Sheathed Copper Tubing
HVAC Systems
- Air conditioning systems
- Cooling systems
Gas Distribution
- LPG and natural gas pipelines
- Commercial gas systems
Industrial Applications
- Instrumentation systems
- Process piping
Quality Control for Sheathed Copper Tubing
Manufacturers conduct strict quality checks including dimensional inspection, pressure testing and sheath adhesion testing to ensure reliable performance.
Conclusion
Sheathed copper tubing provides a reliable and durable solution for various industrial applications. Its combination of strength, corrosion resistance and protective sheath makes it ideal for demanding environments.
When manufactured to international standards and installed correctly, sheathed copper tubing ensures long-term performance, safety and efficiency.