WATER SUPPLY VALVE Russian patent published in 2022 - IPC F16K17/40 F16K17/38 

FIELD: nuclear power industry.

SUBSTANCE: invention relates to the field of nuclear power industry, in particular, to water supply valves that are part of systems that ensure the safety of nuclear power plants, and can be used as part of a solution localization device in severe accidents. The water supply valve contains a starting cup inserted into the intermediate cup and resting with flanged stops on the intermediate cup, a starting rod with a piston installed inside the starting cup and the intermediate cup in such a way that the starting rod rests with the piston against a thermomechanical element, which through a clamping mechanism rests against a protective membrane fixed in the end of the starting cup, a starting spring mounted on the starting rod in such a way that one end of it rests against the piston, and the other end against the flanged stops of the starting cup, a rolling stop installed at the end of the starting rod protruding from the starting cup, a flanged cylinder in which a flanged cup with a stem-glass installed in it is inserted, in which a threaded rod and a spool installed with the possibility of rolling is placed, a thrust cup in which a thrust rod with flanges and a working spring are installed, one end of which rests against the flanges of the thrust rod, and the other end rests against the thrust cup, while between the spool and the thrust rod a ball stop is installed.

EFFECT: increase in the reliability of the water supply valve.

8 cl, 3 dwg