Reviewed are design and operation principles oi the units with movable Sh. V-nozzles, used for gas treatment. Degree of gas treatment from dust in the nozzle working zone is determined. it is stated, that the unit with movable Sh. V-nozzle is characterized as high efficiency multifunctional facility, capable to perform processes of contact heat exchange, mass exchange, vaporization, deaeration, oil separation, liquid phases mixing.