FIELD: valves for the supply of fluid.
SUBSTANCE: invention relates to valves for extracting beer or other foamy and/or carbonated beverages from an isobaric container such as a keg. The claimed valve of the device for supplying fluid includes a housing with a channel for supplying fluid and a stem installed in the channel of the housing with the possibility of vertical movement in it to open and close the channel, a groove is made on the outer surface of the stem around it, in which a sealing ring is placed for sealing the channel where the stem is placed in the channel closing position, at the same time, a reduction is made on the inner side of the housing for the exit of the fluid medium when the stem is placed in the channel opening position, characterized in that the reduction is made in the form of a step-by-step increase in the internal cavity of the housing located around the channel, forming an additional the cavity isolated from the channel when the stem is placed in the channel closing position, on the inner surface of the housing in the additional cavity there is a protrusion for holding the ring in the stem groove when it moves from the channel opening position to the channel closing position.
EFFECT: increasing the reliability of the device.
3 cl, 2 dwg
