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Rotork fluid power valve actuators have been installed at the La Vertiente gas plant in Villamontes, Bolivia, as part of an automation upgrade project.

The La Vertiente gas plant supplies natural gas and stabilised condensate to YPFB, the country’s national hydrocarbon company.

A recent automation upgrade project at the plant required the installation of motorised valve equipment with Safety Integrity Level 2 (SIL2) certification, for which Rotork Fluid Systems supplied 31 spring-return, failsafe, quarter-turn, scotch-yoke pneumatic actuator packages with mechanical partial stroke test facilities.

The Rotork actuators are installed on emergency shutdown (ESD) valves in the most critical processing areas of the La Vertiente gas plant.

Applications include hydrocarbon condensates and water leaving the raw gas separators, glycol and hot oil in the regenerator, natural gas throughout many of the processes including the gas inlet manifold and power gas for the compressors.

‘All the ESD valve locations demand complete confidence in their ability to perform, which the Rotork actuators have achieved, fulfilling customer expectations and meeting the functional security requirements necessary to meet the SIL criteria for BG Bolivia installations,’ said Gabriel De Visnyey, regional sales manager for Latin America at Rotork Fluid Systems.

SIL targets are applied to the reliability and performance of the safety instrumented systems (SISs) used to protect hazardous activities such as hydrocarbon refining and production.

Rotork Fluid Systems can provide complete SIL solutions that are certified in accordance with IEC EN 61508 for final elements used in SISs.

For the La Vertiente automation upgrade, Rotork supplied 28 CP-range and three GP-range SIL2 actuated ball valve packages.

The packages were supplied by Prosertec, Rotork Fluid Systems’ representative in Bolivia, which also provided onsite support with installation, commissioning and start-up.

Rotork Fluid Systems

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