How does AlliA design and manufacture tubular heat exchangers for the nuclear industry?

Home > How does AlliA design and manufacture tubular heat exchangers for the nuclear industry?

Behind the scenes of AlliA's shell-and-tube heat exchanger design

AlliA is a major player in the industrial manufacture of thermal equipment, specializing in tubular heat exchangers for demanding sectors such as the nuclear, chemical and pharmaceutical industries. Safety, performance and reliability are at the heart of every project. Tubular heat exchangers play a crucial role in the thermal management of fluids: they ensure the transfer of heat between several circuits, guaranteeing the stability and efficiency of industrial installations. Thanks to its years of expertise and qualified teams, AlliA can offer tailor-made solutions adapted to the needs of its customers, while complying with international standards such as ISO 9001 and ASME.

Design and manufacturing processes

Technical studies and engineering

The process begins with an in-depth analysis of the customer’s requirements, including fluid types (steam, demineralized water, thermal oil, chemical acids) and operating conditions (pressure, temperature, flow rate). The AlliA design office uses thermal and mechanical simulation software to design the most efficient exchanger, optimizing tube layout and exchange surface area.

AlliA tubular heat exchangers are used in the nuclear, defense, chemical, pharmaceutical and new energy sectors. Their tailor-made design and high reliability enable customers to ensure optimal, safe operation of their facilities.

Choice of materials

AlliA selects the right materials for each application: stainless steel, titanium, incoloy, low- or high-alloy steel. The choice depends on the nature of the fluid, temperature and mechanical constraints, guaranteeing corrosion resistance, durability and safety. Special alloys are used in the most demanding environments, such as nuclear or sensitive chemical installations.

Workshop production

Production takes place in black and white workshops equipped for rolling, bending, welding and cutting tubes and calenders. Processes are strictly controlled to meet mechanical tolerances and safety standards. Advanced techniques such as winding, TIG/MIG welding and orbital bending guarantee exchanger quality and reliability.

Testing and validation

Each exchanger undergoes cold and hot tests, pressure controls and non-destructive inspections (X-ray, ultrasound) to ensure compliance with international standards. This approach guarantees that the equipment will operate optimally and safely in critical installations.

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