Control valve, in particular plug valve with sealing system
US7111821B2 · kind B2 · utility
12Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Feb 6, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K41/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a plug valve comprising a valve body and a shutter that can be actuated, in the form of a segment of a sphere provided with a mobile shaft in rotation and/or translation, said valve also comprising a double-barrier sealing system at the level of said shaft, said valve being characterised in that the joints of said double-barrier sealing system are maintained in place relative to the shaft by a single lid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.