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OFC check and stop valves

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Innovative discharge solution for oil-free chillers and heat pumps

Designed to address main oil-free applications pain points, the OFC valve improves system efficiency and reliability, while reducing complexity. This patented all-in-one valve incorporates a damp nozzle check valve, a stop valve and diffuser functions. It makes a perfect fit with Danfoss Turbocor® oil-free compressors.

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Features and benefits

  • Low pressure drop – high system efficiency​

  • Performance at low flow conditions​

  • Able to cover different conditions for startup, closing and operating 

  • Prevention from reverse rotation and backflow, fast closure​

  • Reliability in extensive surge applications​

  • Protection against compressor and system limitations​

  • Low sound for better customer perception​

  • Embed 90° elbow to valve​

  • No leakage especially during service​

  • Can be put in a vertical line to save space horizontally

Articles

Danfoss OFC check and stop valve performance gain proven

This article reveals that according to ADC tests the OFC check and stop valve improves energy efficiency by 3% in water-cooled chiller systems with Turbocor® compressors, offering potential savings on system design and running costs.

Download article
OFC article

Documents

Documents
Type Name Language Valid for Updated Download File type
Installation guide Check and Stop valve Type OFC English Multiple 18 Mar, 2026 938.6 KB .pdf
Article OFC check and stop valve performance gain proven English Multiple 09 Sep, 2025 472.1 KB .pdf

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