CO2
A natural, low-GWP refrigerant
Climate concerns have led many industries to reconsider common practices that generate greenhouse gas emissions. Heat pumps are rapidly replacing steam and gas boilers in industrial heating systems, and new regulations on F-gases are creating new challenges for chiller and heat pump manufacturers. With new legislation in place in the EU and elsewhere, the phase-out of hydrofluorocarbon gasses (HFCs) is well underway.
Designed for CO2
As a natural refrigerant with low global warming potential (GWP), CO2 has many advantages over other refrigerants. It is non-flammable and non-toxic, safe for the ozone, inexpensive, and readily available in large quantities. It also delivers high thermal conductivity and high heat capacity at constant pressure and is the most efficient refrigerant for low-temperature systems. However, to work efficiently, CO2 requires high operating pressure (approximately 10 times higher than an HFC gas).
New technology for new refrigerants
As the introduction of CO2 and other low-GWP refrigerants accelerates, so will the demand for new technologies designed to operate optimally with these solutions. SWEP works closely with customers and other component suppliers to adapt their systems to CO2.
For high temperatures and pressures
We provide a complete range of reliable, compact brazed plate heat exchangers that are designed to perform optimally under the extreme pressures required by CO2 applications. They provide excellent performance in chillers, refrigeration and freezers, as well as in heat pumps, tap water heating, and heat recovery.
SWEP has several ranges of BPHEs suitable for CO2 applications:
- For applications operating at up to 140 bar at 135 °C
- Suitable for use as gas coolers, evaporators, economizers, and oil coolers in transcritical CO2 applications
- For applications operating at 60 bar at up to 100 °C
- Suitable for use as evaporators, condensers, or suction gas heat exchangers, and for cascade operations
- For subcritical applications operating at 56 bar at up to 100 °C.
- Suitable for use as an evaporator or condenser and for cascade operations.
Copyright © 2025 SWEP International AB, a Dover company
Copyright © 2025 SWEP International AB, a Dover company