Nuclear Heat Exchangers

In an industry where safety is paramount and attention detail must be second to none, Graham Hart (Process Technology) Limiteds high integrity, high precision heat exchangers find themselves at home.

High Integrity Heat Exchangers & Pressure Equipment for the Nuclear Industry

In an industry where nuclear safety, quality assurance, and regulatory compliance are paramount, Graham Hart Process Technology delivers high integrity heat exchangers and pressure equipment engineered for the most demanding nuclear environments.

With decades of experience manufacturing precision-fabricated pressure equipment, we support the civil nuclear new build, nuclear decommissioning, and nuclear propulsion supply chain, providing equipment that is right first time, fully traceable, and manufactured to exacting standards.

We understand that in the nuclear sector, attention to detail is not optional. Every component must perform reliably, safely, and compliantly throughout its design life.

Our Approach to the Nuclear Industry

We view the nuclear sector not simply as a market, but as a long-term partnership.

Every organisation in the nuclear supply chain has a critical role to play in protecting people, assets, and the environment. Our role is to manufacture robust, high-quality heat transfer and pressure solutions that meet stringent nuclear codes and standards, while remaining cost-effective, on schedule, and fully auditable.

Our approach is built on:

Right First Time manufacturing
End-to-end material traceability
Precision machining to tight tolerances
A strong nuclear safety culture
Continuous improvement and skills development

Nuclear Capabilities & Applications

We support a wide range of nuclear programmes and lifecycle stages, including:

Civil Nuclear New Build

Manufacture of high integrity heat exchangers and pressure equipment for new nuclear power stations, supporting safe, efficient, and long-term operation.

Civil Nuclear Decommissioning

Equipment designed to operate safely in challenging, often hazardous environments, supporting defuelling, waste processing, and plant dismantling activities.

Nuclear Propulsion & Defence-Adjacent Programmes

Drawing on over a decade of experience within the nuclear propulsion supply chain, delivering components manufactured to the highest levels of precision, quality, and confidentiality.

Civil Nuclear New Build

Fit 4 Nuclear (F4N) Commitment

After more than ten years operating within the nuclear propulsion industry, we formalised our civil nuclear credentials by embarking on the Fit 4 Nuclear (F4N) programme in collaboration with the Nuclear Advanced Manufacturing Research Centre (NAMRC).

While material traceability, quality control, and high-tolerance machining were already embedded within our business, the F4N programme provided a structured framework to:

Perform rigorous gap analysis
Strengthen governance and quality systems
Embed nuclear best practice across all business functions
Drive continuous improvement

A key outcome of F4N was the formal adoption of the SQEP (Suitably Qualified and Experienced Personnel) philosophy within our training and competence matrix. This ensures that:

Training alone is not sufficient
Personnel are demonstrably competent, experienced, and authorised
Skills are maintained, assessed, and continuously developed

Nuclear Decommissioning Supply Chain

We are proud to be a signatory to the Nuclear Decommissioning Supply Chain Charter, demonstrating our commitment to:

The highest standards of nuclear safety and quality
Ethical and transparent business practices
Skills development and workforce competence
Long-term support of the UK nuclear industry

Discuss Your Food & Drink Project Requirements

Looking for a reliable manufacturer of heat exchangers or pressure equipment for food and beverage processing?

Our engineering and manufacturing teams work closely with customers to deliver robust, dependable equipment that supports safe, efficient, and uninterrupted production.

Contact our Food & Drink Projects Team to discuss your requirements