Innovation

Innovation

Investment in the latest manufacturing technology, and state-of-the-art design and project management software...

Proven Technology

Proven Technology

Throughout the subsea industry, Deepstar equipment is renowned for its reliability and ease of operation by ROVs...

Commitment

Commitment

Dedication to the future of subsea, and the highest quality of design and engineering solutions...

Company Profile

Deepstar Subsea Ltd was founded in 1997 to exploit the subsea oil and gas market, Deepstars core business. Deepstar Subsea is privately owned with its design and manufacturing facility in Hebburn, Tyne & Wear, England.

Deepstars core skills are design, manufacture and marketing of subsea related equipment to the oil and gas sector. Our products are sold throughout the world, with exports accounting for over 50% of the company's annual turnover.

Over the years Deepstar Subsea has faced increased competition, but has been able to maintain its position by constantly improving specification of products.

Design & Consultancy

Design and project management are aspects of the total service offered by Deepstar Subsea of which the company is justifiably proud. Consultancy forms an increasingly important element of our work with our customers, constantly seeking answers to situations which arise as the boundaries of subsea technology continue to expand.

Deepstar has completed numerous contracts with companies in the UK and Norwegian oil sectors. It has access to specialised knowledge through its networking and various associations.

From concept through to supply we work with our customers at every stage, using the very latest in software packages. Our specialist staff will always aim to achieve the best technical and cost effective solution, drawing on our experience in design, engineering and production techniques, and quality assurance.

Short term or long term contracts are carried out with the same enthusiasm and professionalism. And our approach to design and supply will always be the same, whether the item in question is a small machined component or a complete welded process package.

ISO9001

Stab Plates

Stab Plates

With multiple hydraulic and electrical connections either diver or ROV connectable... find out more

Subsea Pumping and Pressurising Assembly

Subsea Pumping and Pressurising Assembly

The pumping assembly comprises of 3 port connection system... find out more

Pig Lock Systems

Pig Lock Systems

Pig lock /stop systems designed... find out more

Subsea Ball Valves

Subsea Ball Valves

Robust subsea ball... find out more

Stab Connection Systems

Stab Connection Systems

Designed to be both robust and easy to connect... find out more

Check Valves

Check Valves

Description required... find out more

Subsea Pig
Launchers /
Receivers

Subsea Pig
Launchers /
Receivers

Flexible flowline pullheads. Flow control modules. Subsea flowline pumping... find out more

Subsea Control Panels

Subsea Control Panels

Compact control panels designed and manufactured... find out more

Stabplate / Multi Port Connection Systems

A range of stabplate / multi port connection systems are available, these can be designed around customer requirements.


  • Multi-stab Plate R.O.V. Connectable
  • R.O.V. Operable 3 Port Connection System

Select another product

Subsea Pumping and Pressurising Assembly

The pumping assembly comprises of:

  • 3 port connection system
  • Subsea pressurising pump
  • Control and pressurising panel

The system allows the R.O.V. To connect its hydraulic power supply to the subsea pressurising pump. The pump and drive have there own subsea compensating system.

The pump is a robust design used in deep water projects for over 10 years. Pump output flow and pressure is dependant on power available from the R.O.V.


The subsea control panel is one of a number of designs available which can include:

  • Stab assemblies
  • Double valves (with single R.O.V. Operators)
  • Chemical metering valve
  • Pump control valve
  • Pressure venting valve

  • Subsea Control and Pressurising Panel
  • Subsea Pressurising Pump
  • 3 Port R.O.V. Connectable Stab Assembly

Select another product

Pig Lock Systems

Pig lock / stop systems designed to customer requirements for topside or subsea applications.

Topside pig lock / stop system.

Subsea pig lock / stop system with API interface.


  • Topside Pig Stop/Lock with Visual Indicator
  • Subsea Pig Stop/Lock with R.O.V. Operable Interface with Visual Indicator

Select another product

Subsea Ball Valves

Subsea Ball Valves single or twin operating stems from 1/2" to 6", 300lb to 2500lb supplied valves or multi-valve mono block design.

Valves can be integrated with swing check valves and stab connection systems.

Gearbox options are available for low torque applications, various paddle operators are available as well as API 17D/17H interfaces.

Valves can be supplied with either weld ends / flanged or a combination of both.

Various materials on request from low temperature carbon steel to duplex.


  • Subsea Ball Valve CW 17D Bucket Interface and Position Indicator
  • Twin Stem Ball Valve with Square Drive Operators, Visual Indicators and Marker Boards
  • Subsea R.O.V. Operable Butterfly Valve with Gearbox
  • Monoblock Valve Assembly complete with Check Valve and Subsea Gearbox Operators
  • Twin Stem Valve

Select another product

Stab Connection Systems

Stab connection systems designed to be both robust and easy to connect. Deepstar systems are flow efficient and proven to withstand extreme conditions and maybe found in constant use on applications throughout the world.

Systems are available in either R.O.V. or diver operable configurations and in sizes that range from 1/8" to 10" (3.75mm to 254mm).

Single or multi port systems for use with water/oil or other fluids can be supplied with integral valve options to prevent loss of medium on connection or disconnection.

Standard designs cover a wide range of applications, but customer requirements are always accommodated whether size envelope handling or porting configurations.

Deepstar will design and engineer ensuring the correct system for the application.


  • Powered Stab Connection System
  • Shut-off CW Disconnection Stab Assembly
  • Twin Entry Female Stab Receptacle
  • Single Entry Receptacle
  • Male Stab complete with Revolving Collar/Handle
  • API 17H Dual Port with Flexible Handle
  • Dual Port API 17H Receptacle with Mounting Flange
  • Single Port API 17H Receptacle with Mounting Flange
  • API 17H Single Port with Flexible Handle
  • Mini Male Stab

Select another product

Check Valves

Deepstar manufacture a range of check valves in flapper and poppet-style options.

These can be supplied with weld ends flange or sandwiched versions. The range of sizes available are from 1" to 6" (25mm to 300 mm).

Poppet style check valves can be supplied to open at nominated pressures, these can be used to prevent hose collapse on subsea applications.


  • Spring Loaded Poppet-style Check Valves pre-set to customers required opening pressure
  • Pre-Set opening pressure Check valve
  • Flapper-style Check Valve

Select another product

Subsea Pig Launchers / Receivers

Supply of subsea pig launchers and receivers and flow control modules.

Systems using Deepstars own valve and stab assemblies and working with our partner fabrication company to supply a complete package.

Flow control modules for pig train speed contol and positioning.

Flexible flowline pullheads manufactured to customer requirements.


  • Pull Head 1
  • Pull Head 2
  • Pig Launcher and Receiver 1
  • Pig Launcher and Receiver 2

Select another product

Subsea Control Panels

Subsea control panels designed to meet customer requirements, compact designed manifold concepts used where possible.

Panels assembled with customer supplied components or deepstar manufactured.

Deepstar can supply systems combining stab assemblies, hydraulic circuitry, electrical connectors, ball valves and needle valves with R.O.V. Interfaces.


  • Dual Valve Panel CW API 17H Stab Assembly
  • Dual Valve Assembly with Single Operator and R.O.V. Operable Metering Valve
  • R.O.V. Operable Subsea Valve Assemblies complete with Vent Valve  and Stab Assembly - Front
  • R.O.V. Operable Subsea Valve Assemblies complete with Vent Valve  and Stab Assembly - Back

Select another product

Contact Deepstar Subsea

Get in touch with us to make the next step