Subsea Connectivity Systems

J+S has 20 years of experience in design, manufacture, repair and replacement of a range of Subsea Control Systems equipment.

This includes electrical and fibre optic connector, cable and oil filled hose jumper assemblies as well as hydraulic couplers, hoses and jumper assemblies. We have also designed bespoke interface equipment for High Voltage connections for Oil & Gas and Renewable Energy sectors.
Electrical Subsea electrical connectors

J+S have IPC qualified electrical technicians with a wealth of experience that allow us to work on a broad range of electrical subsea electrical connectors. We keep stock of selected subsea electrical connectors through our Legacy Locker with both new and refurbished items available off the shelf along with associated spares and adaption pieces. We also have the capability to do High Voltage and Fibre Optic subsea electrical connectors.

Connector experience

  • Siemens subsea electrical connectors
  •    • SE Subsea electrical connectors
  •    • MCE subsea electrical connectors
  •    • Digitron Subsea electrical connectors
  •    • Spectron HV subsea electrical connectors
  • Teledyne ODI subsea electrical connectors
  • Hydrobond subsea electrical connectors
  • Seacon subsea electrical connectors
  • Burton subsea electrical connectors
  • MacArtney subsea electrical connectors
  • Deutsch subsea electrical connectors
  • Scorpion subsea electrical connectors
  • Onesubsea Diamould subsea electrical connectors
  • Trolex subsea electrical connectors
  • Power and Signal Inductive Couplers
Electrical Jumpers

J+S can assemble and test electrical jumper assemblies utilising stock or vendor supplied cable or umbilical. We have a range of test equipment, test connectors, connectors, cables and spares available through our Legacy Locker and qualified technicians to carry out the work. We also have the capability to do splice assemblies, High Voltage and Fibre Optic electrical jumper systems.

Oil Filled Electrical Jumpers

J+S can assemble and test oil filled electrical jumper assemblies for deeper water compensated requirements and keep stock of standard components as part of Legacy Locker. We can also supply, assemble and test splice assemblies for multiple connections as well as repairing existing assemblies.

Hydraulic Couplers

J+S have qualified hydraulic technicians with a wealth of experience that allow us to work on a broad range of hydraulic couplers. We keep stock of selected hydraulic couplers through our Legacy Locker with both new and refurbished items available off the shelf along with associated spares and adaption pieces.

Hydraulic Coupler experience

  • Aker Hydraulic Couplers
  • Subsea Components Hydraulic Couplers
  • National Coupling Hydraulic Couplers
  • MSCM Hydraulic Couplers
  • Walther Hydraulic Couplers
  • Lomax Hydraulic Couplers
  • STL Hydraulic Couplers

HYDRAULIC Jumpers

J+S can assemble, test and flush hydraulic jumper assemblies utilising stock or vendor supplied hoses. We have a range of test equipment, test couplers, hydraulic couplers, hoses and spares available through our Legacy Locker and qualified technicians to carry out the work.

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  • J&S Subsea Limited
  • The Lombard Centre
  • Kirkhill Place
  • Dyce
  • AB21 0GU
  • info@jands.co.uk
  • +44 1224 773435
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James Morris – Engineering Director
James joined the Royal Navy from school where he successfully completed a 5-year Marine Engineering Apprenticeship. After 10 years’ service he started a career in hydraulic systems design, manufacture and project management.
After 5 years working in the hydraulic service industry James moved to Kvaerner Oilfield Products as a Support Engineer providing engineering support for production and service teams within the controls group. He was also responsible for the design, manufacture and offshore operation of the Control System Well Monitoring Equipment for Shell assets used during well intervention testing.
Whilst at KOP he completed an Open University Postgraduate Diploma home study course in Manufacturing: Management and Technology
He subsequently moved to RRC Controls Services where he was solely responsible for all the mechanical and hydraulic design of the company’s successful diver installable Subsea Control Module. Over 10 years at RRC he designed and built a range of bespoke subsea equipment from electrical and hydraulic Subsea Distribution Assemblies to Chemical Injection Flowmeter housings.
On moving to J+S Ltd as a Senior Engineer James continued to be responsible for design of subsea and renewables equipment including a new design ROV installable Subsea Control Module and next generation Medium Voltage dry-mate connection systems. During his 10-year tenure at J+S Ltd and SEA James has been promoted to Principal Engineer and then to Engineering Manager.
James has a wealth of knowledge in Project Management and design processes, using Solidworks 3D and document management software to produce highly configurable product designs in very short timescales.
As Engineering Director at J&S Subsea Limited, James looks forward to developing the engineering capabilities of the business, providing innovative designs, high quality products and responsive service to the Subsea Energy Industries.
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Simon Smith – Business Development Director
Simon has worked in the oil and gas sector for over 20 years. He started his career as a planning co-ordinator for offshore development systems and has since been involved in both surface and subsea operation management both locally and overseas with Wood Group, Plexus Ocean Systems and Cameron’s before joining J+S Ltd in 2012 as a Senior Account Engineer. J+S Ltd then became part of SEA Ltd and the Cohort Group where Simon was promoted to Business Development Manager in 2019 before taking part in the management buyout of the Aberdeen based subsea division of SEA to form J&S Subsea Limited.
Simon initially studied Electronic and Electrical Engineering at Edinburgh University and later Engineering Design at The Robert Gordon University and recently became a Certified Project Management Associate through APM. Simon has experience with on and offshore support along with efficiency and safety control and has utilised this to deliver large scale projects for international clients in the energy industries.
As part of J&S Subsea limited, Simon plans to help grow the Subsea Energy business both in the UK and globally while championing a circular economy focus to help provide a better future.
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Simon Smith
Matthew Blair – Executive Chairman
Matt has worked with SEA and previously J+S Ltd for over 10 years and has a wealth of industry knowledge and expertise. Matt works closely with Oil company subsea engineering and production controls departments, supporting their operational assets
Matt worked with Ferranti Computer Systems Ltd in the naval simulation group and through his extensive experience in electronics and sonar, moved into hydrographic survey working with Subsea7, Tritech, and CDL before joining J+S Ltd.

Matt has lead the management buyout of the Subsea Engineering division of SEA for J&S Subsea Limited and is seeking opportunities to transfer technologies and products into the Oil and Gas and marine renewables markets.

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