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Natural refrigerant · R744
Industrial refrigeration with CO₂ (R744)
Cold rooms and refrigeration installations with carbon dioxide, a natural refrigerant that does not harm the ozone layer and reduces climate impact.
Natural refrigerant
Does not harm the ozone layer and reduces climate impact.
Non-flammable, non-toxic
Can work at very high gas pressures.
Subcritical and transcritical
We have built both subcritical and transcritical CO₂ installations.
Design, installation and maintenance
Wide experience in all kinds of refrigeration installations.
What you should know about CO₂
Used since the mid-19th century, it is gaining ground because of taxes on fluorinated gases and because it is a natural refrigerant.
What it is
CO₂ or R744 gas is a natural refrigerant whose state changes by varying pressure and temperature.
Where it is used
In small and medium freezing installations and in fish shops, butcher shops and supermarkets; also as a secondary refrigerant and in cascade systems.
Systems
Cascade, hybrid with ammonia… hybrid systems being the most common.
Subcritical phase
CO₂ evaporates and absorbs heat, is compressed and condenses, like other refrigerant gases.
Transcritical phase
The most common in industrial refrigeration: CO₂ does not condense and works at quite high pressures.
Reliability
Experience in design, installation and maintenance to guarantee maximum reliability.
CO₂ projects
Carbon dioxide installations we have built (project details mostly in Spanish).
Frequently asked questions
What is R744 refrigerant?
It is CO₂ or carbon dioxide, a natural refrigerant found as a gas in nature whose state can be changed by varying pressure and temperature.
Is it safe?
CO₂ is non-flammable and non-toxic, and can work at very high gas pressures.
Where is it used?
In small and medium freezing installations and in refrigeration installations such as fish shops, butcher shops and supermarkets.
What is the difference between subcritical and transcritical?
In the subcritical phase CO₂ condenses like other refrigerants; in the transcritical phase, the most common in industrial refrigeration, it does not condense and works at quite high pressures.
Why is it used more and more?
Because of rising taxes on fluorinated gases and because it is a natural refrigerant.
Articles about CO₂
Want a CO₂ installation?
We advise you with no obligation.
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