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Refrigerant & Refrigeration Oil: Why Does Compatibility Matter?
Classification: Company News
Aug 14,2026
Refrigerant & Refrigeration Oil: Why Does Compatibility Matter?
In a refrigeration system, the refrigerant transfers heat, while refrigeration oil provides lubrication, sealing and compressor protection.
However, they do not work independently.
During operation, refrigeration oil can circulate with the refrigerant. Therefore, refrigerant-oil compatibility is a critical factor when selecting compressor lubricants.
With the development of HFC, HFO, CO₂ and low-GWP refrigerants, refrigeration oils also need to evolve.
POE (Polyol Ester) base oils, for example, are widely used in modern refrigeration compressors because of their polarity and excellent compatibility with many modern refrigerants.
When selecting refrigeration oil, viscosity is only one consideration. A complete evaluation should include:
Refrigerant + Base Oil + Compressor Design + Operating Temperature + Material Compatibility
The right combination helps ensure reliable and efficient refrigeration system operation.
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