VALVE FOR CHEMICALLY AGGRESSIVE MEDIA Russian patent published in 2021 - IPC F16K1/48 F16K51/02 

FIELD: machine building.

SUBSTANCE: invention relates to hand valves, in particular, intended for isolation and connection of sections of liquid system of thermal control of space vehicles with chemically aggressive heat carrier. Technical problem of the invention is design of the structure ensuring the required level of both total external tightness of the valve during its operation, and tightness of the valve seat setting. Technical result when working with chemically aggressive media is achieved by provision of common tightness due to use of bellows for sealing of movable joints, application of welding for fixed connections and application of self-aligning valve for sealing on seat.

EFFECT: proposed solutions ensure implementation of valve safety requirements when using it for controlling the flow of chemically aggressive liquid heat carrier, as well as to ensure valve durability during operation as part of spacecraft thermal control system.

1 cl, 4 dwg