Refrigeration Oils

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.

1. Naphthenic based Refrigeration oils
2. Paraffin based Refrigeration oils
3. Mixed based oils (combination of naphthenic & paraffin)
4. Naphthenic based are the oils used in metal refrigeration.

SYNTHETIC REFREGERATION OILS

Must be stored in metal containers.

Types:

1. Polyester (POE)Refrigeration Oils
2. Alkyl benzene (AB)Refrigeration Oils
3. Polyglycols Based Refrigeration Oils
4. Dibasic acid ester Refrigeration Oils
5. Neo Pentyl ester Refrigeration Oils
6. Silicone Based Refrigeration Oils
7. Silicate ester Based Refrigeration Oils

Viscosities Available

ISO VG 32 ,46, 68, 100, 150.,220.

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