SVA R2 Electric Subsea Valve Actuator

Aug. 6, 2021
Bosch Rexroth's subsea valve actuator is the world’s first electric actuator that can replace hydraulic cylinders without taking up additional space.

The SVA R2 Subsea Valve Actuator is the world’s first electric actuator that can replace conventional hydraulic cylinders with field-proven safety technology and without taking up additional space. The integrated electric controller offers precise motion control. Thanks to condition monitoring and a safety spring, the SVA R2 satisfies Safety Integrity Level (SIL) 3 in accordance with IEC 61508 and IEC 61511. The use of internationally standardized interfaces throughout means even more standardization in the subsea process industry. The actuator minimizes energy consumption and is geared toward delicate ecosystems. At the same time, the installation and operating costs are reduced. The functions, operating life, and safety of the actuator have already been successfully tested in accordance with international standards. When the SVA R2 is used in subsea factories at a depth of up to 4,000 m, hydraulic pipes or power units are no longer required. The electric supply pipes which are already installed for sensors are adequate to ensure the reliable operation of the actuators. 


For the agile development of the SVA R2, the Bosch Rexroth team worked closely with a number of suppliers and operators of offshore installations, as well as international universities. The module comprises a pressure-compensated container that contains an electric drive, a motion control system, and a safety device, as well as being able to replace the hydraulic cylinders previously used on a 1:1 basis. It requires only one cable for the power supply and communication. The SVA R2 is designed to actuate valves reliably with the power supply that is commonly used for subsea sensors. Switching to compact and safe electric actuators means that the hydraulic pipes several kilometers in length along with the associated power units and controllers are no longer required. 


The Subsea Valve Actuator is designed for high-volume production. The electronics for the motion control system are from the automotive division and offer proven robustness and reliability. The SVA R2 is protected by a number of patents and is designed to operate for 25 years. Bosch Rexroth relies on globally accepted interfaces throughout and supports plant engineers, operators, and offshore service providers when standardizing equipment.


The SVA R2 is suitable for other applications both below and above water such as hydrogen production, CO2 storage, and general applications in the process industry. The first pilot tests are due to start in the third quarter of 2021. 

  • Seamless integration with subsea equipment. Same size as existing hydraulic cylinders and includes standard ROV interfaces for easy handling.
  • Power supply and communication with just a single cable—like a sensor.
  • Reduce Your CAPEX by removing all hydraulic infrastructure and reusing Your existing subsea electric distribution.
  • Accelerate your production by applying a Plug & Play actuator and avoid complex hydraulic installations.
  • Speed up installation and commissioning with digital twins, standardized interfaces. Simply connect one cable!
  • Reduce OPEX with maximum energy efficiency and minimum maintenance downtime.
  • Relax for the next 25 years.
  • Minimize service effort for subsea and surface installations and switch to intelligent subsea electric valve actuators with condition monitoring capability.
  • Easily automate existing equipment with simple retrofit solutions.