OMV Petrom is the largest integrated oil and gas group in south-eastern Europe. For its Petrobrazi refinery in Romania, safety, efficiency and compliance with European regulations are major criteria in critical applications such as burner management systems. For this reason, the refinery decided to invest in new fuel gas lines and safety systems for its heaters and furnaces to make the units safer and more efficient.
Demanding requirements in a dangerous environment
In burner management systems, extraordinary reliability is expected from the on-off and safety valves, as unnecessary shutdowns of a heater would cost hundreds of thousands of dollars on a daily basis. The safety shut-off valves must close under all circumstances. In addition to shut-off safety, the on-off valves in front of the burners are responsible for managing the correct heat temperature.
The chosen valves are expected to perform like new over a long period of time. As shutdowns for inspection and maintenance are costly, regular shutdowns are normally scheduled only once every four years, and they need to be performed as quickly as possible to minimise downtime.
Exceeding expectations
OMV Petrom chose Jamesbury series valves for its fuel gas safety shutdown and burner on-off applications. These soft-seated 7000 and 9000 ball valves are made for highly demanding uses such as fuel line emergency shut-off and switching applications.
The valves’ seating design and material provide superior long-term bubble tightness that withstands a high number of thermal cycles and valve strokes, even exceeding the 250 000 strokes required by EN 161. Additionally, the cavity relief feature enables safe operation, even in the event of sudden temperature increases. This allows any fuel gas overpressure that might build up in the valve cavities to be released automatically on the upstream side.
Certified performance
To fulfil European directives, the refinery followed EN 746-1, which requires that only EN 161-certified valves can be used in burner management systems.
Thanks to all the relevant certifications the on-site approval process was accelerated. High process stability and safe operation in the refinery have been achieved through the unique design of these valves created specifically for burner applications.
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