Pumps
The pump creation history goes back several millennia, this machine has taken one of the primary roles in human life. There is no area of human economic activity where people do not use pumps.
A pump is a machine that converts mechanical energy of the drive into hydraulic energy of fluid being pumped, thereby moving it. Cold, hot water, various chemical liquids, oil, petroleum products, clay and cement solutions, etc. are pumped by pumps.
There are enormous numbers of pump types divided both by the operation principle and by application. For example, just at thermal and nuclear power plants the pumping equipment is represented by a wide range of all kinds of units: feed pumps, circulation pumps, heating steam condensate pumps for regenerative low pressure feed water heaters, chemical water treatment pumps, line pumps, make-up pumps, condensate pumps for line heating plants, etc.
Pumps are used in drilling wells, deep-pumping operation of oil fields, transportation of oil and oil products via trunk pipelines, in process operations at refineries and tank farms.