Gate valve assembly with an axially flexible seat
US8794593B2 · kind B2 · utility
9Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/0227
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gate valve assembly having metallic valve seats that are axially resilient and maintain a static sealing interface between the valve seat and a body pocket and a sliding dynamic sealing interface between the valve seat and a gate in the valve assembly. The valve seats are annular members having slots formed radially through the valve seats from the inner and outer circumferences. Sleeves may be provided that are coaxial to the valve seats; the sleeves may be on the inner surface of the valve seats, outer surface of the valve seats, or both. Shims may optionally be set in the slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.