In 1996, we installed three single stage integrally geared HV-TURBO units, KA10S-GA250, in the Russian Siberia, where the temperatures can sink to -65oC during wintertime. Our specialists refined the design to deal with the extreme low temperatures, including a special oil system combined with a protected control system. All three HV-TURBO compressors have now been in operation for 24 years, and continue to provide clean water to the world’s coldest inhabited location.