High Quality Copper Pipe for Air Conditioning Systems serve as the core components of air conditioning and refrigeration circuits. Manufactured from high-purity Copper Material(such as TP2 phosphorus-deoxidized copper and TU1 oxygen-free copper) through precision processing, they are specifically designed for refrigerant transport and heat exchange in air conditioning systems. They are widely compatible with various applications, including split-type air conditioners, central air conditioning systems, and commercial refrigeration equipment. Offering multiple advantages such as high-efficiency heat exchange, pressure resistance and leak prevention, corrosion resistance, and ease of fabrication, these pipes directly determine the efficiency of cooling and heating, operational stability, and service life of air conditioning systems. They represent the preferred alternative to inferior aluminum pipes and copper clad aluminum pipes, providing air conditioning systems with the peace of mind of a “single-pipe-through” solution.
Key Features
1.High-purity raw materials, ensuring quality from the source
We carefully select high-purity red copper raw materials with a purity of 99.9% or higher, covering a wide range of specifications such as TP2 phosphorus-deoxidized copper, TU1/TU2 oxygen-free copper, and T2 pure copper. These materials feature extremely low oxygen content, are free of impurities, and have a uniform, dense microstructure. This eliminates issues such as leaks and oxidation caused by poor material quality at the source, and complies with stringent domestic and international standards including GB/T 17791, ASTM B280 / C12200, and other stringent domestic and international standards. Every batch of raw material undergoes multiple quality inspections, ensuring traceable and reliable quality. Among these, TP2 phosphorus-deoxidized copper, with its excellent welding and cold-forming properties, has become the mainstream choice for air conditioning connecting tubes and heat exchangers; TU1 oxygen-free copper, with its extremely high purity and outstanding thermal and electrical conductivity, is suitable for high-end air conditioning models with stringent performance requirements.
2.High-efficiency heat exchange, saving energy and reducing electricity consumption
Copper Tube has a thermal conductivity of up to 401 W/(m·K), far exceeding that of alternative materials such as aluminum tubing, and offers more than 2.5 times the heat exchange efficiency of standard aluminum tubing. The internal surface area of internal-threaded copper tubing is 65–100% larger than that of smooth-surface copper tubing of the same specification, resulting in a 1.8–2.0-fold increase in the heat transfer coefficient. This allows for rapid heat transfer between the refrigerant and the air, enabling the air conditioner to heating cycles to start faster and shorten runtime. For the same cooling capacity, energy consumption can be reduced by approximately 12%, resulting in significant long-term savings on electricity bills. At the same time, it improves the air conditioner’s energy efficiency ratio (EER/COP), aligning with energy-saving and environmental protection trends.
3.Pressure-resistant and leak-proof, ensuring more stable operation
Manufactured using seamless precision machining processes, these tubes feature uniform walls and high dimensional accuracy. Combined with vacuum annealing treatment, they achieve a tensile strength of over 240 MPa and an elongation of more than 35%. They can withstand cyclic pressure fluctuations of 0.5–3.5 MPa in air conditioning systems, effectively preventing tube bursts and leaks caused by excessive pressure. Among these, degreased air conditioning copper tubes (oil-free copper tubes) feature thicker walls: 0.8 mm for 2-inch and 3-inch tubes, and 1.0 mm for 4-inch, 5-inch, and 6-inch tubes. They can withstand high pressures of 1.8 MPa and are specifically designed for new refrigerants such as R410; standard air conditioning copper tubes are compatible with R22 refrigerant, with pressure controlled at 0.98 MPa, to meet the needs of different refrigerants. Before leaving the factory, all tubes undergo 100% eddy current testing to ensure they are free of cracks and pinholes, with an airtightness compliance rate of over 99.3%, fundamentally eliminating the risk of refrigerant leaks.
4.Corrosion-resistant and weather-resistant, with double the lifespan
Copper is chemically stable and naturally forms a dense protective layer on its surface, effectively resisting environmental corrosion from humidity, salt spray, and acid rain. It is also highly compatible with common refrigerants such as R22, R410A, and R32, causing no chemical reactions and preventing refrigerant degradation. After surface passivation treatment, corrosion resistance is further enhanced, with a service life of up to 15–20 years—far exceeding the 5–8-year lifespan of inferior copper tubing. This effectively extends the service life of air conditioning systems by more than three years, reducing future maintenance and replacement costs, and making them suitable for various challenging environments, including coastal and humid regions.
5.Easy to process and install, with broad compatibility
Copper offers excellent ductility, allowing it to be freely bent, flared, cut, and welded without breaking or wrinkling. It can adapt to the piping layout requirements of various home layouts and air conditioner models, making it equally suitable for on-site installation of residential split-system units and centralized installation of central air conditioning systems. Available in two forms: straight pipe and coiled pipe (coil). Coiled pipes are easy to transport and have no length restrictions; coils are convenient for maintenance; straight pipes are suitable for large-scale equipment such as central air conditioning systems; Common pipe diameters include 1/4“, 3/8”, 1/2“, 5/8”, and 3/4“, with custom specifications available upon request. They are compatible with all residential and commercial models ranging from 1 to 10 HP. Some products feature a ”weld-free" design, allowing connections to be completed in just 3 minutes, thereby simplifying installation.
6. Safety, Health, and Environmental Sustainability
Copper ions possess natural antibacterial properties that effectively inhibit the growth of harmful microorganisms, such as Legionella, in air conditioning systems, thereby reducing the risk of “air conditioning sickness” and safeguarding indoor air quality. Copper materials are 100% recyclable, with a recycling rate for discarded copper pipes exceeding 90%. This aligns with the principles of a circular economy, leaves no harmful residues, ensures safe use, and upholds eco-friendly practices. Additionally, the smooth inner walls of the pipes—free of oxidation layers and residues—reduce resistance to refrigerant flow and prevent impurities from accumulating and affecting the system’s operational efficiency.
Applications
✅ Residential Applications: Connection pipes for indoor and outdoor units of split-type, floor-standing, and wall-mounted air conditioners, as well as heat exchanger piping for indoor and outdoor units. Compatible with 1–5-ton residential models, balancing energy efficiency and durability.
✅ Commercial Applications: Central air conditioning systems, shopping mall/office building HVAC systems, hotel air conditioning, and cold storage refrigeration equipment. Suitable for high-capacity units, meeting the demands of high-intensity, long-term operation, and capable of withstanding 5,000 hours of continuous, uninterrupted operation.
✅ Industrial Applications: Refrigerant delivery piping for industrial refrigeration equipment, constant temperature and humidity units, and chillers. With excellent pressure resistance and corrosion resistance, it is suitable for complex industrial environments.
✅ Maintenance Applications: Copper tubing for coil trays. Easy to use, it meets various air conditioning maintenance and replacement needs, resolving issues such as leaks and aging in old copper tubing.
FAQ
Q1: What is the difference between high-quality copper tubing and low-quality copper or aluminum tubing?
A1: High-quality copper tubing is made from high-purity raw materials. It offers high heat exchange efficiency, pressure resistance, leak prevention, and a long service life, with no risk of leaks, making it more energy-efficient over the long term. Low-quality copper tubing is often made from recycled scrap copper, which is prone to oxidation and leaks, has a short service life, and incurs high maintenance costs later on. Aluminum tubing has poor thermal conductivity, is prone to corrosion, and has low ductility; it is prone to breaking when bent and carries a high risk of refrigerant leaks, so it has gradually been replaced by high-quality copper tubing.
Q2: How do I choose the right copper tubing for my air conditioner?
A2: Select based on the type of refrigerant (use standard copper tubing for R22 refrigerant; use degreased copper tubing for newer refrigerants like R410A); Select the appropriate pipe diameter based on the air conditioner’s capacity (1–2 HP units: 1/4“ + 3/8”; 3–5 HP units: 1/2“ + 5/8”); choose the pipe type based on the installation scenario (coiled tubing for residential installations, straight tubing for central air conditioning, and spiral tubing for maintenance); for high efficiency and energy savings, consider internal threaded copper tubing.
Q3: What precautions should be taken during the installation and use of copper tube?
A3: During installation, avoid puncturing the copper tubing with sharp or hard objects. When bending, avoid excessive bending that could cause cracking or wrinkling. When soldering, ensure even soldering and avoid issues such as incomplete fusion or burn-through. Clean oil and oxide residues from the surface of the copper tubing before soldering. Perform a pressure test after installation to ensure there are no leaks. During use, avoid exposing the copper tubing to alkaline environments for extended periods to prevent stress corrosion cracking.
Q4: Do you offer customization options? Are there discounts for bulk purchases?
A4: We support customization of copper tubes with specific diameters, wall thicknesses, and lengths, and can produce custom solutions based on specific customer requirements (such as for special equipment models or industrial applications). Bulk purchases qualify for exclusive discounts; please contact customer service for details on specific discount rates. We offer on-site coordination and supply based on your needs.
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