Control valve trim and seat design for valve trim with minimal unbalanced area
US7055548B2 · kind B2 · utility
9Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Sep 22, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86791
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid control valve trim and seat with a valve plug of a radius of about 0.03 inch, when used in conjunction with a valve seat angle of about 75°, results in minimal unbalance area. The valve trim is provided with pairs of anti-cavitation notches. The notches are arranged such that notches of each given pair are angled with respect to one another, and may be further arranged such that adjacent pairs of notches are off-set relative to one another, so as to increase the time fluid spends in the plenum, resulting in proper staging and controlled pressure drop as fluid passes through the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.