FIELD: power-generating equipment; applicable, particularly, in purification of insulating liquids, for instance, of transformer oil in various industries. SUBSTANCE: device has vessel with intake pipeline in its upper part, vacuum pump, transfer pump with pressure pipeline and connected with vessel lower part by suction pipeline. Transfer pump is used in form of rotary-sliding vane pump creating additional artificial rarefaction at its outlet. Transfer pump forms closed circuit together with vessel connected to vacuum pump. EFFECT: simplified design, reduced labor input and higher quality of liquid purification from gas inclusions. 1 dwg
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