CO₂ in industrial refrigeration

Solutions for sub- and transcritical CO2 in industrial refrigeration

CO2 in industrial refrigeration is used either as the low-stage refrigerant in cascade installations, or as a secondary coolant. With the introduction of larger compressors with high working pressure, CO2 also begins to be used on the high stage in CO2 transcritical systems.

Danfoss has more than 20 years of experience in developing industrial solutions for CO2 systems and offers a complete range of valves and controls for sub- and transcritical applications, including:

  • Control valves
  • Line components
  • Complete valve stations
  • Filter-driers
  • Sensors for temperature, pressure, level and gas detection
  • Controllers

Most recently, Danfoss has launched the 140 bar Shut-Off valve SVA-140B, Strainer FIA-140B and Service needle valve SNV-140B and more will come.

Danfoss has carried out all the required tests to ensure that components released for use with CO2 at high pressure levels are compatible in all respects. Danfoss industrial refrigeration specialists can help you with the selection of the right components for CO2 applications.

We have developed several tools that facilitate design of CO2 systems such as Coolselector®2, application guides and a comprehensive set of technical leaflets and instructions.

Why CO₂ for industrial refrigeration applications?

Why CO₂ in industrial refrigeration?

Learn about the benefits of using CO2 for industrial refrigeration applications.

Read more

More information

Find brochures and other relevant documents about industrial refrigeration applications and CO2.

Products for CO₂

An overview of industrial refrigeration products for CO2.

CO2 in industrial refrigeration - Danfoss
Experience significant savings with the Danfoss pumped CO₂ solution

By investing in a CO2 secondary cooling system today, you protect yourself from ever-increasing energy prices over the next 10-15 years!

Case studies

  • if (isSmallPicture) { Danfoss secures a major design win for a landmark CO₂ refrigeration project in china; } else if (isBigColumns) { Danfoss secures a major design win for a landmark CO₂ refrigeration project in china } else { Danfoss secures a major design win for a landmark CO₂ refrigeration project in china }
    Danfoss secures a major design win for a landmark CO₂ refrigeration project in China

    The global climate & energy leading company Danfoss is pleased to report that its award winning valve station for industrial refrigeration, called the ICF Flexline™, recently achieved a major milestone in China

  • if (isSmallPicture) { World's first 100% CO₂ system for ice rinks scores with Danfoss valves; } else if (isBigColumns) { World's first 100% CO₂ system for ice rinks scores with Danfoss valves } else { World's first 100% CO₂ system for ice rinks scores with Danfoss valves }
    World's first 100% CO₂ system for ice rinks scores with Danfoss valves

    With an estimated 8,000 ice hockey rinks in the United States and Canada, the small Quebec town of Saint-Gédéon-de-Beauce, 20 miles west of the Maine border, boasts the world's first ice hockey rink that uses 100 percent carbon dioxide (CO₂) refrigeration.

  • if (isSmallPicture) { Running hot and cold co2 saves in more ways than one; } else if (isBigColumns) { Running hot and cold co2 saves in more ways than one } else { Running hot and cold co2 saves in more ways than one }
    Running hot and cold CO₂ saves in more ways than one

    5% lower energy costs using the Eco-2-System compared to a 3.2 COP with leading systems that use a glycol/brine loop.

  • if (isSmallPicture) { High-Rise refrigerated fruit storage and distribution Danfoss; } else if (isBigColumns) { High-Rise refrigerated fruit storage and distribution Danfoss } else { High-Rise refrigerated fruit storage and distribution Danfoss }
    High-Rise refrigerated fruit storage and distribution, using a NH₃/CO₂ fluid system, gives optimum results for stored products and company financials

    Internal transport is done using fully automated cranes and conveyor systems This ingenious system dispenses with the need for people and forklift trucks Forklift trucks are now only used on the dispatching floor, for loading and unloading trucks and containers