Basic information on the most common hydraulic machines in the food industry: pumps, compressors and fans. The main attention is paid to modern centrifugal machines. The main provisions of hydraulics required to perform various engineering calculations required in the development of technology, as well as in the design and operation of machines and devices of food production are given. Particular attention is paid to the hydraulics of pipelines during the movement of viscous liquids. Designed for engineering and technical workers involved in the design and operation of equipment of food industry enterprises. The book can be useful for students of relevant specialties.