Pumps for cryogens

Pumps for cryogens
The term “cryogen” is an indication of very low temperatures. Cryogen literally means “cold-making”. CFC’s (chlorofluorcarbon compounds) are used in traditional cooling processes. As is known, CFCs are used as refrigerants in refrigerators and deep-freezers, but also as propellants in aerosols such as hair spray and deodorant.

As CFCs affect the Ozone layer, companies are looking for CFC-free applications. As a replacement of these CFC’s, cryogenic gases such as N2O (nitrous oxide or laughing gas) and CO2 (carbon dioxide) are currently being used. To liquefy thIs type of cryogenic gases, they are used at very low temperatures and high system pressures.  
 

Suurmond offers various solutions for pulsation-free pumping of cryogenic gases: 


Process limits:
- 200°C
System pressure up to 100 barg
Differential pressure up to appr. 10 bar

The advantage of magnetically coupled gear pumps is that they can handle the required system pressures at these low temperatures quite simply and effectively.

Process limits:
- 200°C
System pressure up to 100 barg
Differential pressure up to appr. 5 bar
 
Process limits: 
- 25°C
System pressure up to 300 barg
Differential pressure up to appr. 10 bar 
 
Cryogenic applications Suurmond has supplied successfully pumps for:
  • Pumping fluid laughing gas (Nitrous Oxide) as a refrigerant
  • Pumping fluid carbon dioxide as a refrigerant
  • Circulation of thermostat fluids

Contact us and let’s talk about your specific requirements. We can make the right selection for you!

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