High pressure flexible seat valve trim
US4834338A · kind A · utility
6Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1988 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/427
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid valve with improved valve trim for reliable fluid shut off in high pressure applications. The improved valve trim includes a flexible metal seat with a lip portion which flexes outwardly upon sealing contact with a valve plug seating surface. A deformable seal mounted in the seat is prevented from substantial outward movement by a rigid metal seal retainer and is squeezed outwardly around the plug seating surface as the seat lip portion flexes outwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.