INCREASE OF RELIABILITY AND EFFICIENCY OF WORK OF DOUBLE-PISTON SOLUTION OF CONCRETE PUMPS WITH DISH VALVES FOR ACCOUNT OF EXCEPTION OF OPPOSITE CURRENT OF CONCRETE MIXTURE

Stable working conditions two-piston растворобетононасосов with dish-shaped valves proceeding from traffic conditions of a concrete mix and taking into account resistance arising there are defined. The admissible size of a corner of disclosure of the valve α, not allowing emergence of countercurrents of a mix is proved.