VRV Copper Pipe Dimensions and Weights: A Comprehensive Guide

Copper Fitting
2 min readJun 6, 2024

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Copper piping is a critical component in various HVAC (Heating, Ventilation, and Air Conditioning) systems, particularly in VRV (Variable Refrigerant Volume) systems, also known as VRF (Variable Refrigerant Flow) systems. The efficiency and reliability of these systems heavily depend on the quality and specifications of the copper pipes used. Here, we explore the dimensions and weights of VRV copper pipes in millimeters (mm) and kilograms (kg).

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Copper pipes are preferred in VRV systems due to their excellent thermal conductivity, durability, and resistance to corrosion. The dimensions of these pipes typically range from small-diameter tubes suitable for tight spaces and small-scale applications to larger pipes needed for extensive systems.

Common Dimensions and Weights

  1. 6.35 mm (1/4 inch): This size is often used for small-capacity systems. The typical weight is around 0.16 kg per meter.
  2. 9.52 mm (3/8 inch): A standard size for slightly larger systems, weighing approximately 0.27 kg per meter.
  3. 12.7 mm (1/2 inch): Common in medium-capacity systems, with a weight of about 0.42 kg per meter.
  4. 15.88 mm (5/8 inch): Suitable for larger installations, weighing around 0.55 kg per meter.
  5. 19.05 mm (3/4 inch): Used in high-capacity VRV systems, this size weighs approximately 0.75 kg per meter.
  6. 22.23 mm (7/8 inch): Ideal for extensive HVAC setups, with a weight of about 0.95 kg per meter.

Importance of Accurate Sizing

Selecting the right dimensions and weights of copper pipes is crucial for optimal system performance. Oversized or undersized pipes can lead to inefficiencies, pressure drops, and increased energy consumption. Properly sized pipes ensure a balanced refrigerant flow, enhancing the overall efficiency and longevity of the VRV system.

In summary, understanding the dimensions and weights of VRV copper pipes is essential for anyone involved in the installation and maintenance of HVAC systems. Accurate measurements ensure efficient system performance and long-term reliability, making them a cornerstone of modern HVAC engineering.

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