Monitoring Moisture and Wear Particles in PAG and POE Synthetic Lubricants for R-134a Compressors Using Portable Oil Analyzer

Format:

Conference/Event

Author/Creator:

Garvey, Ray, author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1994-10-17 : Baltimore, Maryland, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

Polyalkalene glycols, or PAG, and polyol esters, or POE, are two synthetic lubricants commonly used in refrigerant compressors. They are both hygroscopic. Moisture which is picked up can lead to chemically weakened load bearing surfaces and to corrosion, thereby accelerating mechanical wear.PAG and POE lubricant samples having from 0.00% to 1.28% water were tested using a portable oil analyzer. Minimum detectibility was found to begin at 0.04% (400 ppm) moisture. Increasing amounts of moisture above this amount yielded proportional output response. Additional samples were contaminated with known concentrations of metal particles representative of common wear debris. Minimum detectability was found to begin at approximately 15 ppm for 4 to 6 micron size iron particles and <100 ppm for 0 to 60 micron size tin particles

Notes:

Vendor supplied data

Publisher Number:

942029

Access Restriction:

Restricted for use by site license