Refrigeration Compressor Oils
Refrigeration oils play a important role in the extended life of refrigerant compressors. . Earlier mineral oils were primarily used in refrigeration systems due to the phase-out of CFC refrigerants. Due to insufficient lubricity (lubricating ability) and miscibility(mixing ability) of mineral oils are not compatabile with new refrigerants. The use of Synthetic oils such as alkyl benzene and polyester can be used with lubricants to find acceptable new refrigerants.
Synthetic lubricants have been used for many years in various industries. As with other oils, lubricants are blended specifically for use in refrigeration systems. Synthetic Oils were considered too expensive for general use compared with mineral oil. Oil producers and compressor manufacturers go to great lengths and expense to develop and test new lubricants. There are tests for viscosity, floc point, pour point, flash point, etc. The service engineer does not need to know the details of these oil qualities, but should understand the terms and why they are important.
Types OF Refrigeration Oils
Mineral Oils also called Petroleum Oil.
SYNTHETIC REFREGERATION OILS
Must be stored in metal containers.
ISO VG 32 ,46, 68, 100, 150.,220.
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