Severn Subsea Technologies

Subsea engineering solutions

Severn Subsea Technologies is dedicated to the R&D, design and manufacture of subsea valves, HPHT downhole tools and camera systems for oil and gas applications.

‘Good enough never is’
High reliability engineering is the Modus Operandi of SST. We design and build systems for harsh, hazardous environments and take this responsibility very seriously. ISO 9001 registered, SST is IEC 80079-34 compliant, enabling manufacture of ATEX Zone 0 and IECEx intrinsically safe systems.

Core competences include
• Mechanical, electrical and software engineering
• HPHT testing
• Precision manufacture, assembly and test
• Integrated telemetry and control
• Functional Safety Management (IEC 61508 and IEC 61511)

Next generation innovation
Insights gained from working in extreme HPHT environments are currently being applied to a new generation of subsea valves: DCV, HIPPS and Chemical Injection Metering. As operators move to deeper waters, the reliability and integrity of SST’s valve systems will set the precedent for subsea production.

Technologies under development or recently launched by SST include
Tool Detection Alarm – a Zone 0 rated tool detection sensor technology to reduce risk of damage to riser assemblies during drilling and intervention operations.

New generation directional control valves that can operate at greater depths as well as handling higher pressures and temperatures.



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