Method and apparatus for removing a strainer basket from a steam valve
US10046447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2016 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8085
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A valve strainer basket of an interceptor-type or control-type steam valve is removed from its nested orientation within a counter bore and valve rim of the valve casing. A strong back beam straddles the casing rim over the strainer basket. It is coupled to the strainer basket, such as by engagement of threaded rods into threaded apertures formed in the strainer basket rim. Biasing cylinders, such pressurized fluid cylinders or screw jacks, are interposed between the casing rim and opposite ends of the strong back beam. When the biasing cylinders are actuated, the strong back beam rises, lifting and separating the strainer rim from its nested engagement with the counter bore of the valve casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.