Method of assembling a ball valve
US8186371B2 · kind B2 · utility
1Cited by
118References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2010 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Apr 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0508
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball valve includes a valve element and a single piece packing that seals the valve element within a valve cavity. The single piece packing is installed over the valve element at room temperature or may be molded thereon. The valve element may include a flow control element such as a ball and upper and lower trunnions. The various dimensions of the valve element and packing are selected to facilitate room temperature assembly and to substantially reduce the volume of packing material, thereby improving the performance of the valve over wider temperature ranges and pressure ratings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.