Mechanical Design Engineering for Pressure Equipment & Heat Exchangers

Our Mechanical Design Engineering team is fully accredited and experienced in global pressure vessel and heat exchanger standards, including ASME, TEMA, PD5500, EN13445 and API. Using advanced 3D CAD and finite design analysis tools, we engineer equipment built for extreme pressures, temperatures and regulatory environments, ensuring structural integrity and safety. We specialise in challenging geometries, high-performance alloys and bespoke engineered solutions for critical applications.

Mechanical Design Engineering for Pressure Equipment & Heat Exchangers

Graham Hart Process Technology delivers specialist mechanical design engineering for high-integrity heat exchangers and pressure equipment operating in extreme regulatory and operating environments.

Our designs are engineered to withstand high pressures, high temperatures, cyclic loading and corrosive service, including High Pressure High Temperature (HPHT), vacuum and cryogenic applications, while meeting stringent international codes and safety requirements.

Manufacturing of High-Integrity Heat Exchangers

Experienced Mechanical Engineers for Complex Operating Environments

Our mechanical design capability is delivered by a team of highly experienced mechanical engineers, with specialist expertise in:

High Pressure High Temperature (HPHT) equipment
Vacuum systems
Cryogenic pressure equipment
Safety-critical and regulated applications

This depth of experience allows us to engineer solutions for applications where failure is not an option and operating envelopes are pushed to their limits.

Fully Accredited to Global Design Codes & Standards

All mechanical design work is completed in-house and fully compliant with international pressure equipment standards, including:

ASME VIII Division 1 & Division 2
PD5500
EN13445
Stoomwezen

Our engineers ensure designs meet client, regulatory and jurisdictional requirements, providing confidence at every stage of approval, fabrication, inspection and operation.

Advanced Engineering Tools & Beyond-Code Design Capability

We utilise the latest industry-leading software packages for pressure equipment design, supported by:

In-house proprietary calculation tools
Advanced Finite Element Analysis (FEA)

This capability allows us to validate designs not only within established codes, but also when engineering challenges push beyond code limits.

Our expertise includes:

Complex geometries and non-standard configurations
High-performance and exotic alloys
Bespoke joint and sealing solutions
Challenging thermal–mechanical interactions

Every design is validated for strength, fatigue, thermal expansion and long-term durability, even under extreme conditions.

Designed for Manufacturability, Inspection & Lifecycle Performance

Mechanical design is fully integrated with our manufacturing and inspection capabilities, ensuring:

Designs are practical and efficient to fabricate
Inspection and testing requirements are clearly defined
Weld details align with qualification and certification standards
Long-term inspection, access and maintenance are considered

This integrated approach results in equipment that is safer, more reliable and easier to maintain throughout its service life.

Trusted for Critical & Regulated Applications

Our mechanical design engineering is trusted across a wide range of critical industries, including:

Nuclear safety-related equipment
Subsea and offshore systems
Chemical and pharmaceutical plants
Energy and advanced process infrastructure

Clients rely on us where engineering integrity, regulatory compliance and operational reliability are paramount.

Talk to Our Mechanical Engineering Specialists

If you require mechanical design engineering for pressure equipment or heat exchangers, particularly for HPHT, vacuum or cryogenic applications, our accredited engineering team is ready to support your project.

Explore our mechanical design services or speak to our specialists today