Machines and apparatus for liquefying gases, in particular gas mixtures containing methane, in particular natural gas; compressors for compressing gases or refrigerants; turbines for decompressing gases or refrigerants; valves being parts of motors and engines for decompressing gases or refrigerants; companders being machines for compressing and decompressing gases or refrigerants; installations for liquefying gases comprising combinations of machines and apparatus for liquefying gases, compressors, turbines, valves, and companders; natural gas liquefying apparatus and machines and components thereof; industrial machines for chemical and/or physical treatment of methane containing gas mixtures, in particular of natural gas, comprising combinations of machines and apparatus for liquefying gases, compressors, turbines, valves, and companders
Machinery