Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.

Why Use Copper Tubes in Air Conditioning?


As technology advances, air conditioning has become an indispensable part of every household. To ensure the long-term and smooth operation of air conditioning systems, whether it's split-type wall-mounted units, central air conditioning, or cabinet units, the quality of the air conditioning itself is crucial. Equally important is the type of air conditioning pipes and refrigerants used.

The pipes in the refrigerant system are typically made of copper. Due to the corrosive nature of refrigerants, rubber pipes such as PPR and PEX cannot be used. This leaves us with the options of steel pipes, aluminum pipes, and copper pipes.

So, why choose copper pipes for the refrigerant system?

  • Seamless Installation and Durability: Copper pipes, with their integral design and flared ends, exhibit excellent pressure resistance, reducing the risk of refrigerant leaks.

  • Excellent Ductility, Oxidation Resistance, and Thermal Conductivity: Copper pipes boast good ductility, resistance to oxidation, and high thermal conductivity, resulting in efficient heat exchange.

Drawbacks of Other Materials

  • Steel Pipes: Inability for seamless installation, susceptible to rust and aging at connection joints due to high-pressure gases and liquids within the refrigerant system.

  • Aluminum Pipes: Limited ability to create flared ends, lower pressure resistance, susceptibility to oxidation, and the likelihood of developing leakage points.

Having understood the reasons behind choosing copper pipes for refrigerant systems, let's explore the classification of copper pipes.

Copper pipes are mainly categorized into phosphorus deoxidized copper (TP2), pure copper (T2), and oxygen-free copper (TU1). TP2, with 0.015-0.04% phosphorus content, offers excellent welding performance. T2 is pure copper with a copper content exceeding 99.90%, ensuring exceptional conductivity. TU1, oxygen-free copper with a copper content ≥99.97%, exhibits high purity, excellent conductivity, thermal conductivity, ductility, and corrosion resistance. However, its stringent production requirements and higher cost position it as a premium choice among copper pipes.

Differentiating High-Quality Copper Pipes

  • Touch: Check for smooth and clean inner and outer walls, and examine for defects such as sand eyes, oxidation, or fractures.

  • Visual Inspection: Observe the color of the copper pipe; purple copper pipes generally have a reddish hue, while brass pipes tend to have a lighter color.

Jintian Copper ranks among the top three globally recognized brands for copper tube manufacturing in the air conditioning and refrigeration industry. With factories in multiple locations, including Jiangsu, Ningbo, and Vietnam, Jintian Copper is a trusted copper tubes manufacturer. For inquiries, please contact 0574-83005999.