Submersible ROVs

Submersible ROVs


For over 15 years James Fisher Nuclear has been at the forefront of submersible ROV innovation providing solutions for applications in both operational and decommissioning projects.

As experts in the field of remotely operated vehicles James Fisher Nuclear (JFN) has cultivated strong links with leading ROV suppliers, specialist sensor and tooling providers, subject matter experts and academic institutions to help develop the latest in ROV technology. So you can be confident JFN can bring you the best equipment and the best engineers and technicians to ensure your project is completed on time, on budget and with safety as paramount. 

Submersible ROVs for characterisation and condition monitoring 

Deployment of a variety of systems and instruments on ROVs to support characterisation of a nuclear environment encompassing: 

  • Single characterisation projects
  • Routine surveys and maintenance activities
  • Pond structure defect detection and monitoring
  • Annual statutory inventory inspections
  • Supply of information for the update and maintenance of client databases
  • Analysis, storage and maintenance of information


Techniques include: 

  • Visual surveys e.g pond contents
  • Sampling e.g pond sludge and liquor
  • Radiological measurements and mapping e.g gamma dose mapping
  • Chemical measurements e.g. oxygen
  • Sonar/ultrasound  measurement

Submersible ROVs for remote handling applications

ROVs with suitable tooling are used by JFN in many innovative ways to deliver operations and decommissioning tasks.

Manoeuvring, removal, retrieval  and size reduction tasks. These have been undertaken using a variety of tooling including manipulators, saws, cutters,  digger-like buckets and pumps. There is continuous innovation is new applications and tooling designs.

Trials, testing, simulation and training

James Fisher Nuclear has extensive rig hall facilities with a wide and an enviable track record in practical research and development, operational trials and training, and simulation of hazardous environments.

Whilst desk-based studies and modelling give a useful insight to the general approach, the practical demonstration of a concept, validation of the methodology and final testing of a completed approach have proven to de-risk projects and prevent failure of a system in a hostile environment. The opportunity to train in realistic environments with the actual equipment also greatly improves operator performance and confidence during the deployment phase.

If a modification is required, we have the skills and resources for these to be rapidly implemented and tested with minimal impact on your programme. These are supported by extensive in-house facilities and expertise in machining and assembly for both mechanical and electrical systems. 

To see more of our suite of unmanned vehicles click on the links below:

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