SHUTOFF VALVE Russian patent published in 2009 - IPC F16K3/02 F16K3/316 F16K27/04 

FIELD: engineering industry.

SUBSTANCE: invention refers to pipeline valves, and is meant for closing and controlling the supplied medium flow. Shutoff valve consists of a body that includes the first part (10), the second part (12), and inlet and outlet parts (14). The above first part (10) and second part (12), when assembled, determine inlet and outlet in relation to the cavity formed by the above assembled first and second parts. Inlet and outlet are connected with the appropriate holes in inlet and outlet parts (14) so that liquid medium can flow between them. Inside the above body there installed is a wedge (18) with the possibility of being moved to the above cavity. Wedge forms a wall in the above cavity thus preventing the liquid from passing through the body and from leaving the above cavity. The first part (10) is made as one unit with internal guides (22). Guides have end sections (23). The latter protrude with restricted second part to the area of the above cavity when the first and second parts are assembled. End sections (23) close the gap between first and second parts thus sufficiently closing the sections of the above second part, and providing continuity of guides of the wedge. There is a sealing insert for shutoff valve, and shutoff valve design version.

EFFECT: simplifying the assembly, and imroving valve service life.

30 cl, 18 dwg