Control valve trim and seal
US7926784B2 · kind B2 · utility
14Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jul 12, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/142
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid control device comprises a valve body, a valve plug, a valve cage, and a sealing ring. At least a portion of the sealing ring is disposed within a gap between the valve plug and the valve cage to provide a seal therebetween when the valve plug is in the closed position. The sealing ring includes an L-shaped cross-section that provides an effective seal regardless of the port diameter of the fluid control device, and thus, reduces the number of types of seals required to be stored in inventory for various applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.