Valve for pourer

A valve for a pourer of containers, being configured to be coupled to the mouth of a container according to an axial direction X-X′ such that, when the pourer is in an operative mode coupled to the container, the lower part is on the side next to the container and the upper part is on the side farther away from the container, said valve comprising:

• a frame comprising:
• a first cavity having a tubular configuration with the main axis thereof oriented according to the axial direction X-X′ with a passage opening, and
• a second cavity, having a tubular configuration with the main axis thereof oriented according to the axial direction X-X′ and in communication with the first cavity through the passage opening, the second cavity comprising a cylindrical guiding surface extending according to the axial direction X-X′, and a sealing flange projecting towards the inside of the second cavity;
• wherein the second cavity comprises a diameter smaller than the diameter of the first cavity and both cavities are connected by means of an inner transition surface located in the first cavity;
• a valve core arranged inside the frame and comprising:
• a first guiding segment adapted for being housed on the guiding surface of the second cavity, and
• a support surface adapted for being supported on the sealing flange, the support surface adapted to establish tightness between both surfaces;
• wherein the valve comprises at least two positions:
• a first closed position in which the first cylindrical segment of the valve core is housed on the guiding surface of the second cavity and the support surface of the valve core is supported on the sealing flange establishing tightness between both surfaces and thereby establishing tightness between the first cavity of the frame with respect to the second cavity of the frame, and
• a second open position in which the support surface of the valve core is separated from the sealing flange in at least one point, giving rise to a fluid communication passage between the first cavity of the frame with respect to the second cavity of the frame;
• and wherein the valve core comprises:
• a configuration such that its center of gravity is, according to the axial direction X-X′ and when the valve is in its first closed position, in the second cavity and below the inner transition surface;
• a second segment which is concentric with respect to the first guiding segment;
• and
• a fluid storage cavity limited according to a radial direction between the first guiding segment and the second segment and in the lower portion thereof by a base;
• wherein the storage cavity is located below the inner transition surface when the valve is in its first closed position.