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Polyalkylene Glycol Refrigeration Lubricants - Current Status and Retrofit Applications
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English
Abstract
Polyalkylene glycol (PAG) lubricants have been chosen for use with refrigerant HFC-134a by the mobile air conditioning industry. As this industry gears up to use PAG lubricants, several issues have surfaced regarding the handling of these products. Information will be presented regarding the hygroscopicity and elastomer compatibility of PAG lubricants.
Polyalkylene glycols are being evaluated by the automotive industry as retrofit lubricants. PAG lubricants exhibit good stability in the presence of residual CFC-12. Data from retrofit tests performed on compressor test stands will be summarized. This paper will also describe the retrofitting of CFC-12 vehicles to HFC-134a and PAG lubricants.
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Citation
Brown, W., "Polyalkylene Glycol Refrigeration Lubricants - Current Status and Retrofit Applications," SAE Technical Paper 932904, 1993, https://doi.org/10.4271/932904.Also In
References
- Matlock, P. L. Clinton, N. A. 1992 Polyalkylene Glycols Synthetic Lubricants and High-Performance Functional Fluids Shubkin R. L. Marcel Dekker, Inc. New York, NY
- Oils for Alternative Refrigerants DuPont Company Wilmington, DE
- Finkenstadt, W. R. 1992 Polyalkylene Glycol and Polyolester Lubricant Candidates for use with HFC-134a in Refrigeration Compressors ASHRAE Transactions 1992 98
- Lache, W. Pocklington, J. Laukotka, E. 1991 New Refrigeration Machine Oils for Chlorine-Free Refrigerants DKV-Tagungsber 2 47
- SUVA Trans A/C (HFC-134a) for Mobile Air Conditioning DuPont Chemicals Wilmington, DE
- Compatibility of Elastomers with HFC-134a DuPont Chemicals Wilmington, DE
- Retrofit Guidelines for Conversion of CFC-12/R-12 Systems to HFC-134aR-134a A/C Action! Mobile Air Conditioning Society E. Greenville, PA April 1993 12