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Rotork is supplying an all-electric valve actuation package encompassing isolating, regulating and modulating actuators with two-wire digital control for the Dantysk offshore wind farm in the North Sea.

Almost 100 quarter-turn electric actuators from Rotork will control butterfly valves on the Dantysk transformer platform, which is situated 70km west of the German island of Sylt.

Approximately half of the actuators are IQTPro intelligent isolating and regulating duty units and the rest are CVA fully modulating control valve actuators. Both designs share non-intrusive programming and commissioning technologies combined with integral data-logging, diagnostic and asset-management capabilities.

Digital two-wire control is provided by Rotork’s proprietary Pakscan P3 system, which is designed specifically for valve actuation environments. On the Dantysk project, the Pakscan network master station will link the actuators to a distributed control system and to a remote, centralised monitoring centre situated at Esbjerg in Denmark.

Key benefits of product application

  • As the actuators features rugged, double-sealed IP60 watertight and explosion-proof enclosures, they offer long-term reliability in the harsh offshore environments encountered in this application.
  • The Rotork CVA electric actuators deliver continuous, repeatable modulating control with a programmable fail to position option.
  • Resolution, repeatability and hysteresis performance is quoted at less than 0.1 per cent of full scale, making the Rotork technology suitable for demanding control valve applications.

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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