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STF-product-category

STF

The 4-way valves are used in reversible applications such as heat pumps or reversible air conditioning units and chillers.

The 4-way valve allows an inversion of the refrigeration cycle, changing from cooling mode in summer to heating mode in winter.

Features and benefits

  • Wide application range with complete capacity range
  • High reliability with unique design
  • CE approved
  • UL approved