Abstract
The article describes the various types of preformed units of packed elements: cylindrical, sheet and ball. It is planned to do analyze of the hydrodynamic environment devices by the alteration of the gas flow rate and determination of the mode operation as well as researching of hydraulic resistance machines irrigated with regular packing depending on the vertical spacing between the elements of a packed and identifying opportunities to achieve regime simultaneous vortex. The equation for calculating the amount of the retained fluid for all the studied packed elements will be obtained as a result of the experimental data processing.