GLOBE VALVE Russian patent published in 2007 - IPC F16K5/20 

FIELD: engineering of pipeline armature, possible use for sealing globe valves of large diameters, and under high pressure.

SUBSTANCE: inside the body, globe valve contains spindle, globe plug and packing unit in form of collapsible circular saddles. Each saddle has three bushings: external and internal and a moveable intermediate one added between the first two. The internal bushing is immoveable and is in tight contact by its end surface with spherical surface of globe plug. Intermediate bushing on the side of ball plug has a shelf on its external surface. A thread for connection to external bushing is made on the shelf. Conical surface of external bushing is made with possible provision of a space with spherical surface of globe plug. There are no shelves on external cylindrical surface of internal bushing to allow movement of intermediate bushing on it. Corresponding surfaces of bushings form a socket for embedding resilient packing ring with circular slit for its exit. Packing ring is made with cross-section profile analogical to the embedding socket.

EFFECT: increased packing reliability of globe valve.

3 cl, 2 dwg