Refrigeration oils

Key Features and Functions:

1. Lubrication Properties: Refrigeration oils provide lubrication to moving parts within compressors, including pistons, bearings, valves, and seals, reducing friction, minimizing wear, and preventing component damage.
2. Viscosity: Refrigeration oils are available in various viscosity grades to match specific compressor designs, operating temperatures, and lubrication requirements. Common viscosity grades include ISO VG (Viscosity Grade) 32, 46, and 68, with higher grades offering increased viscosity and lubricating film thickness for heavy-duty applications.
3. Compatibility: Refrigeration oils are compatible with different compressor types, including reciprocating, rotary vane, screw, and centrifugal compressors, ensuring optimal performance and compatibility with system materials, seals, and refrigerants.
4. Chemical Stability: Refrigeration oils exhibit chemical stability and resistance to oxidation, hydrolysis, and thermal degradation under high-temperature and high-pressure conditions, prolonging oil life and maintaining lubrication effectiveness.
5. Miscibility with Refrigerants: Refrigeration oils are formulated to be miscible or compatible with refrigerants used in refrigeration and air conditioning systems, such as hydrofluorocarbons (HFCs), hydrochlorofluorocarbons (HCFCs), hydrocarbons (HCs), and natural refrigerants like ammonia (NH3) and carbon dioxide (CO2).
6. Low Pour Point: Refrigeration oils have a low pour point to ensure fluidity and pumpability at low temperatures encountered during system startup and operation, preventing oil thickening and flow restrictions in cold environments.
7. Moisture Absorption: Some refrigeration oils contain additives or properties to absorb and neutralize moisture, preventing moisture-related issues such as corrosion, sludge formation, and acid formation within the refrigeration system.
8. Compatibility with System Materials: Refrigeration oils are formulated to be compatible with system materials such as metals, elastomers, plastics, and coatings commonly found in refrigeration and air conditioning equipment, ensuring compatibility and minimizing the risk of material degradation or chemical reactions.