Balanced valve with actuator
US6691980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/1221
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The valve device includes a valve body and a bonnet with a fitting clamped therebetween and extending within body and bonnet bores. The fitting and valve body have bore portions with a valve stem extended therein and through a valve seat and having opposite end portions of the same diameters and in fluid sealing relationship with the above bore portions axially opposite the valve seat. The body has inlet and outlet passages opening to the fitting and body bores axially opposite the valve seat and axially intermediate the stem end portions. A sensor is connected to the valve stem and is movable against spring action to move the valve stem to its open position. An actuator, for example an electric motor, is mounted to the bonnet and operable for forcing the sensor to move the valve stem to its valve open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.