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Dependable instrumentation for critical applications

IMI Thompson Valves designs and manufactures high integrity solenoid valves, pressure regulators, and accessories for critical applications in the most arduous environments.

Oil & Gas, chemical, marine, nuclear and defence customers benefit from market leading performance, durability, and reliability; substantiated by over 2 billion hours of proven-in-use data.

We build upon our core product ranges to develop customised and bespoke solutions, enhanced by decades of application insight and world class manufacturing at our UK headquarters.

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Critical Applications

Oil & Gas
Power Generation
Hydrogen & Industrial Gas

Oil & Gas

IMI Thompson Valves manufacture solenoid valves, partial stroke testing systems and regulators specifically designed for oil & gas applications. We offer options for both pneumatic and hydraulic systems to suit wellhead control panel systems, HPU’s and HIPPS systems, alongside actuators, chemical injection units & process control panels, alongside many other critical applications. Our portfolio includes our Maxseal solenoid and IVP range which has a market leading safety design and performance.

IMI Critical Engineering - Factory


IMI Thompson Valves have over 50 years’ experience supplying naval equipment to a global client base. Pressure reduction and fluid control solutions, which include regulators, solenoid valves, and bellows sealed valves, are designed for reliable performance, and meet the customer’s most challenging operating conditions.

Valves for submarines


With a global reputation for quality, service and reliability we have had nuclear class product in service for over 50 years, operating in over 100 stations worldwide.

We can offer an extensive range of nuclear class valve products for PWR, BWR, CANDU and other proven reactor types. The product range is also applicable to nuclear facilities, waste management and decommissioning programs. Many of the products in this section conform to ASME III and RCC-M Nuclear Class 1, 2 & 3 Design Rules.

Valves for Nuclear

Power Generation

Developed a fast-acting solenoid valve specific for turbine or process control, enabling 6” solenoid valves to close in less than 100ms. We have a comprehensive range of product designs to suit different media’s pressures and material using Maxseal globally leading SIL design.

Valves for Power Plants

Hydrogen & Industrial Gas

The rapidly growing hydrogen market and more established applications for industrial gas place particular demands upon high-pressure instrumentation, which IMI Thompson Valves help customers to meet.

Green Hydrogen Solutions

Maxseal Solenoid Valves

The Maxseal portfolio provides world leading safety across pneumatic and hydraulic options, with the largest in-built safety margin with a force-friction ratio >10. Our solenoids range from ¼” to 6” with global certification and AVL accreditation with over 2 billion hours of proven in use data with global certification.

APIPEC 2022 Oil and Gas
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Our dedicated af​termarket service division has over 200 highly trained service technicians. This global team can provide 24-hour remote assistance, field service, parts, repairs and upgrades, as well as long-term service contracts to ensure customer processes are functioning safely and optimally.