FIELD: automatic filtration, overflow and pumping liquids having different properties, including high-aggressive, explosive, fire-hazardous and toxic liquids. SUBSTANCE: device includes compressed air main, hermetic reservoir where float valve is mounted on springs, pressure pipe and air distributor made in form of housing whose inner cavity is provided with movable rod. Rod of this cavity and rod of float valve are used for connecting the pressure reservoir with atmosphere or with compressed air main. EFFECT: enhanced reliability. 1 dwg
