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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 is the world’s leading designer and manufacturer of actuators for isolating, regulating and modulating valve duties, valve control systems, valve gearboxes and accessories, serving the international oil and gas, power generation, water and effluent treatment, processing and environmental industries. Capabilities encompass actuators and control systems for new plants, plant extensions and upgrades. Rotork’s global network of more than 350 offices and representatives provides a localised single source for these products, supported by life-of-plant maintenance, repair and upgrade services.

Rotork Controls

  • Market-leading intelligent electric actuator technologies offer a solution to applications of virtually every description, size and complexity, in any environment

Rotork Fluid Systems

  • Dedicated to the design and manufacture of robust and advanced fluid power valve actuators

Rotork Gears

  • Provides an unrivalled service for valve gearboxes and accessories, completing Rotork’s status as the ‘one-stop shop’ for valve actuation and control equipment

Rotork Site Services

  • Offers expertise for the installation and commissioning of retrofitted valve actuators and control systems for plant upgrades and extensions
  • Services provided also encompass site surveys, actuator audits, maintenance, repair and advice on valve actuation equipment from any manufacturer

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