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Compressor oil is intended for greasing of piston compressors of an average and a high pressure.
Depending on what requirements are imposed to compressor oil and in what areas its application is planned, compressor oils are subdivided into various classes:
* the compressor oils intended for greasing of piston and rotational compressors -
* the compressor oils intended for ensuring operability of turbocompressor cars -
* the compressor oils intended for greasing of knots and details of refrigerating compressors.
The compressor oils focused on piston and rotational compressors are in process of the work in direct contact with gas. In piston compressors, on compressor oil the problem of providing greasing of cylinders and valves lays down generally. Besides, compressor oil serves for sealing of a chamber of compression. There are two types of implementation of greasing — combined when in addition to compressor oil industrial oils are used. Piston and rotational compressor oils have to be stable in relation to temperatures and oxidation, to formation of koksoobrazny deposits.
In compressors of refrigerators continuous contact of compressor oil and coolant when there are continuous differences of temperatures and pressure jumps is supposed. The mineral and synthetic oils used as compressor oils have to have the low temperature of hardening and stability of a chemical composition.