Ball valve having an adjustable trim arrangement
US10544868B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/205
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments of the invention provide a trim arrangement for a ball valve. The trim arrangement includes a first seat assembly having a first seat, a threaded collar, and a biasing element. The first seat is in contact with a first side of a ball element, and the threaded collar is threadably coupled to the first seat and in engagement with the biasing element. The trim arrangement further includes a second seat assembly having a second seat in contact with a second side of the ball element. The biasing element biases the first seat toward the first side of the ball element to provide a contact stress between the first seat and the first side of the ball element and the second seat and the second side of the ball element. The contact stress provided by the biasing element is adjustable by rotating the first seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.