Gas cooling processes, as well as refrigerating machines and units, which provide these processes, are essential elements of gas industry manufacturing. The specific features of the refrigeration equipment, applied in gas industry, are the following: large unit capacity, a wide application range of compressors (gas-turbine or gas reciprocating ones) gas drives, prior use of air-cooling units in the function of condensers for the refrigerant; an application of cheap refrigerants (basic products and by-products in this industry); a high reliability degree, sufficiently long operational life, and automation maximum level.

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