Tyne Pressure Testing is a leading subsea pressure testing facility. We work closely with original equipment manufacturers (OEMs) within the subsea and mining industries to simulate subsea environmental conditions down to depths of 15,000 metres.

Our nine hyperbaric chambers conduct subsea pressure testing on a range of components in compliance with API standards, including valves for deep sea, stand pipes, subsea harnesses and subsea vehicles.

The method used for subsea pressure testing is hyperbaric testing. Hyperbaric testing is essential to ensure the safety of a component and verify its strength and stability when operating under external pressure. This type of testing not only verifies the structural integrity of the component at its operating water depth but can also be used to verify the functionality of the component in operation conditions.

Not only can we provide flexibility to suit various components in terms of size and pressure, our knowledge and expertise means that we are a preferred supplier within the subsea industry for pressure testing.

Subsea components include; diver watches, cables, geophysical monitoring probes, subsea filters and diving equipment.

If you require pressure testing services for the subsea sector, speak to a member of our team.

Not sure which hyperbaric chamber is for you? Meet our hyperbaric chambers.


  • Fast turnaround
  • Delivery
  • Security
  • Industry accredited
  • Full electronic report of all test data
  • API 6A, API 11 and API 17 compliance

We’re qualified


Case Studies

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Tyne Pressure Testing has completed a series of hyperbaric tests to validate the designs of an 8” subsea ball valve and a 5⅛” gate valve, for a Spanish valve manufacturer.

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Tyne Pressure Testing partnered with a defence manufacturer to carry out altitude testing on four units in accordance with standard MIL STD-810G.

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Subsea Oil & Gas

Tyne Pressure Testing has completed a series of subsea verification tests for an Italian manufacturer on an 18” ball valve and hydraulic actuator to support a project in Malaysia.

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