Multi-double block and bleed system for an orifice fitting
US10036512B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Sep 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/42
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system and method for providing a multi-double block and bleed configuration in an orifice fitting to provide an additional barrier of protection between the pressurized flow stream and the environment outside the flowmeter. The multi-double block and bleed system includes a first pair of blocking valves located below a second pair of blocking valves. The multi-double block and bleed system further includes a first vent valve positioned between blocking valves of the first pair blocking valves, a second vent valve positioned between blocking valves of the second pair of blocking valves, and a third vent valve positioned between the first and second pairs of blocking valves. The pairs of blocking valves and the vent valves are arranged to provide double block and bleed during all phases of orifice plate installation and removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.