Stainless Steel and Carbon Steel Pressure Vessel Testing and Repairs in South Wales, UK
At LTi Vessco, we are a trusted UK pressure vessel manufacturer specialising in bespoke stainless steel and carbon steel pressure vessel fabrication in South Wales. Our core focus is the design, manufacture, and delivery of high-quality pressure vessels for safety-critical and regulated industries across the UK and internationally.
Our projects range from single bespoke pressure vessel builds for established plants, to multiple vessel orders for entirely new sites. Every pressure vessel we manufacture is engineered to meet exact operational requirements, ensuring reliability, compliance, and long-term performance in demanding industrial environments.
As a reliable pressure vessel manufacturer and supplier, we support both new installations and replacement projects, delivering custom high-pressure equipment built to specification. In addition to manufacturing, we also provide pressure vessel testing and repairs as supporting services to help maintain performance and extend asset life.
Our Expertise
The design and manufacture of pressure vessels is LTi Vessco’s core business. We specialise in high-pressure fabrications and are capable of producing complex and intricate units using precision engineering techniques, right up to the largest pressure vessels transportable by road.
Our fabrication capability covers a wide range of materials including stainless steel and carbon steel, allowing us to produce bespoke pressure vessels tailored to demanding industrial applications. From expansion vessels to high-pressure process equipment, each unit is manufactured to meet strict operational and regulatory requirements.
Our projects range from single replacement pressure vessels for established plants, to multiple vessel orders (up to 50 units) for entirely new sites - in the UK and overseas.
With extensive experience across sectors including oil and gas, nuclear, and industrial processing, we have built a strong reputation as a reliable pressure vessel manufacturer delivering consistent, high-quality fabrication solutions.
Supporting Services
Alongside pressure vessel manufacturing, we provide supporting lifecycle services to ensure continued performance and compliance:
• Pressure Vessel Testing: Comprehensive inspection and testing services to verify the safety, integrity, and performance of stainless steel and carbon steel pressure vessels.
• Pressure Vessel Repairs: Specialist repair services for reactor vessels, deaerators, and other high-pressure equipment, restoring functionality and extending service life.
These services are designed to complement our manufacturing capability, supporting your pressure vessel assets throughout their operational lifecycle.
Recent Projects Include:
Our portfolio reflects our capability as a bespoke pressure vessel manufacturer. Recent projects in South Wales and across the UK include:
• Jacketed vessels: Designed for controlled heating and cooling within industrial processes.
• Limpet coil vessels: Supporting efficient thermal transfer in complex process systems.
• Deaerator vessels: Manufactured for the nuclear power industry, including ongoing work supporting Hinkley Point projects.
• Filter/dryer vessels: Combining filtration and heat exchanger functionality within a single system.
• Lobster back vessels: Engineered for specialised flow requirements.
• Custom pressure vessels: Non-standard fabrications with complex internal structures.
All pressure vessels are manufactured using advanced fabrication techniques, supported by skilled engineers and strict quality control procedures. This ensures every unit performs reliably within its intended application and meets required industry standards.
Pressure Vessel Inspection Process
Our commitment to quality underpins every pressure vessel we manufacture. Inspection and testing form an integral part of our fabrication process, ensuring each unit is verified before delivery.
Our inspection process includes:
• Thick-walled units: Chrome molybdenum vessels ranging from 45 mm to 80 mm thickness.
• Controlled welding quality: Continuous monitoring to maintain high standards and reduce defects.
• Full inspection coverage: 100% radiography and ultrasonic testing where required.
• High-performance capability: Suitable for high-temperature, corrosive, and high-pressure environments up to 1000 barg.
• Extreme environment suitability: Designed for offshore oil and gas and other demanding industrial applications.
• Complex internal structures: Including reactor internals, separators, and specialised components.
As a UK-based pressure vessel manufacturer, we provide full traceability and documentation to support compliance across regulated industries.
We have supplied thick-walled units including a 45 mm chrome molybdenum exchanger for Sabic Petrochemicals and multiple high-pressure vessels for Linde / Barton Firtop, demonstrating our capability to deliver complex, large-scale projects.