Copper Refrigeration Tubing

Maddison Davis
2 min readAug 9, 2024

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Copper refrigeration tubing is a critical component in HVAC (heating, ventilation, and air conditioning) systems, as well as in various refrigeration applications. This type of tubing is specifically designed to handle the demands of refrigerant transport, thanks to its excellent thermal conductivity, durability, and corrosion resistance.

Types of Copper Tubing

Copper tubing for refrigeration comes in two main types: soft (annealed) and rigid (drawn).

  • Soft Copper Tubing: This type is flexible and can be easily bent to navigate around obstacles, making it ideal for tight spaces and complex configurations. It is often used in split-system air conditioners and heat pumps. Soft copper tubing can be joined using flare connections, compression fittings, or soldering.
  • Rigid Copper Tubing: This type is more robust and is commonly used for water lines and other applications where bending is not required. It is typically joined using soldering, roll grooved, compression, or crimped/pressed connections.

Advantages of Copper Tubing

  1. Thermal Conductivity: Copper has one of the highest thermal conductivities among metals, making it extremely efficient at transferring heat. This property allows refrigeration systems to cool more effectively and operate more efficiently.
  2. Durability and Strength: Copper tubing is highly durable and can withstand high pressures and extreme temperatures, which are common in refrigeration systems. It is also resistant to fatigue, meaning it can endure repeated heating and cooling cycles without cracking or weakening.
  3. Corrosion Resistance: Copper naturally forms a protective oxide layer that prevents further corrosion. This makes it an excellent choice for systems exposed to refrigerants and other chemicals that could cause deterioration in other materials.
  4. Ease of Installation: Copper tubing is relatively easy to install. It can be bent and shaped without special tools, and it can be joined using various methods such as brazing, soldering, or using compression fittings. This flexibility simplifies the installation process and reduces labor costs.
  5. Environmental Benefits: Copper is recyclable, which makes it an environmentally friendly option. After its use in refrigeration systems, copper can be repurposed into new products, reducing waste and promoting sustainability.

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