SHUTOFF VALVE Russian patent published in 2019 - IPC F16K3/02 F16K31/143 

FIELD: reinforcement bars production.

SUBSTANCE: invention relates to pipeline valves, particularly, to shutdown devices. Cutoff valve comprises interconnected locking unit, opening unit and control unit. Shutoff unit includes a housing, in which an inlet and an outlet holes are made coaxially to each other with formation of a channel between them for passage of working medium, which is connected with a cavity, also made inside the housing. Opening unit includes a housing, inside which an opening chamber is formed, in which a spring-loaded piston is located and which is connected to the cavity of the blocking unit housing. Control unit includes a housing, inside which control channels are formed, which are interconnected with the cavity of the block unit housing and with the opening chamber, and at least one control element configured to lock the passage along these channels. Inside the body of the locking unit with the possibility of overlapping the channel formed in it there is a gate connected by means of a rod to the piston of the opening unit. Gate is installed on the stock with possibility of its free displacement from the axis to both sides.

EFFECT: invention is intended for tight shutoff of pipeline with different media at medium supply in any direction.

1 cl, 5 dwg