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Inner-grooved tubes

Inner-grooved tubes improve the heat transfer performance of your product or solution.

tubes with inner grooves

Straight inner-grooved tubes

The solution consists of an internally enhanced aluminium tube for high-fin density condensers and evaporators. The inner grooves improve heat transfer, offering higher efficiency by more compact design.

Additional zinc coating layers are available to further increase corrosion resistance, which makes this product a high-performing tube. Different grooves depth and geometry satisfy the specific regional requirements and refrigerants in use.

Helical inner-grooved tubes

The inner grooves are following a helical pattern and have been optimized to improve heat transfer. The improvement in the heat transfer coefficient of the tube is two times what can be achieved with traditional smooth bore tubes. This increased efficiency can help achieve a more compact design of the heat exchangers and a reduction in refrigerant load.

Different grooves depth and geometry satisfy the specific regional requirements and refrigerants in use.

Zinc coating

For heat exchangers operating in aggressive environments, our experts strongly recommend the addition of a zinc coating to the tubes. This additional layer provides the tubes with increased corrosion protection and prolonged lifetime compared to the equivalent bare tube.

This zinc coating is available on smooth bore tubes, and straight inner grooved tubes.

Key features

  • Straight grooves
    • High heat transfer efficiency
    • Easy to form and bend
    • Low cost and weight
  • Helical grooves
    • Very high heat transfer efficiency
    • Easy to form and bend
    • Low cost and weight