Pressure Vessels
We specialize in the design and manufacture of high-performance pressure vessels, built to meet the toughest industrial challenges. Our pressure vessels are engineered for reliability, safety, and long-term durability. With advanced fabrication techniques and a deep understanding of industry standards, we deliver solutions that ensure optimal performance under both high- and low-pressure conditions. As a trusted pressure vessel manufacturer with decades of fabrication expertise, InoxTorres designs and builds custom pressure vessels in stainless steel, high nickel alloys, duplex, superduplex, cladded materials, and titanium — certified to ASME (U, U2, R), PED, and ISO 9001 standards for the oil & gas, petrochemical, pharmaceutical, hydrogen, and pulp & paper industries.
Main features of our Pressure Vessels
- We design and manufacture pressure vessels from a wide range of materials, including stainless steel, high-nickel alloys, duplex, superduplex, clad, and titanium, among other exotic materials. We select each material to match your process conditions, from hydrogen storage to high-temperature petrochemical service.
- Fully customizable according to process parameters, industry requirements, and specific applications.
- We produce pressure vessels ranging from small-scale systems to large units weighing up to 300 tons, available in both vertical and horizontal configurations. — as well as spherical and custom geometries where facility layout demands it.
- Finite Element Analysis (FEA) to ensure optimal design and structural integrity, along with heating or cooling jackets, coils, and dimple jackets to improve thermal performance.
- All equipment complies with ASME, EU norms (EN13445), TEMA, AD, China & Korean Standards and more, guaranteeing high-quality inlet and outlet performance.

Pressure Vessels for Every Industry We Serve
Every InoxTorres pressure vessel is engineered around the operating conditions, codes, and materials requirements of the industry it serves:
- Oil & Gas: pressure vessels built to handle high-pressure hydrocarbon separation, processing, and storage across upstream and downstream operations.
- Petrochemical: corrosion-resistant vessels in duplex, superduplex, and high nickel alloys for aggressive chemical processing environments.
- Pharmaceutical: hygienic, fully traceable pressure vessels manufactured to strict documentation and quality standards for sterile, GMP-driven processes.
- Hydrogen: pressure vessels engineered for the safe storage and processing of hydrogen, supporting energy-transition and green hydrogen projects.
- Pulp & Paper: heavy-duty pressure vessels built to withstand the continuous, high-throughput demands of pulp and paper production lines.
High-Quality Pressure Vessel Solutions
A precise design that strictly follows applicable codes and standards is essential for manufacturing a high-quality pressure vessel. At InoxTorres Group, we ensure every aspect of the manufacturing process is optimized for maximum reliability and performance.
- Precise Design & Compliance: we follow strict codes and standards to ensure high-quality pressure vessel manufacturing — including ASME Section VIII, the Pressure Equipment Directive (PED), and ISO 9001 — to ensure high-quality pressure vessel manufacturing. Read our guide to ASME Section VIII compliance for more detail.
- High-Quality Welding: focused on every detail, from bevel design to welding procedure selection, ensuring reliability and performance. Explore our full welding capabilities.
- Traceability & Quality Control: we ensure traceability, quality control, and thorough documentation to meet all regulatory and operational requirements.
This comprehensive approach guarantees that our pressure vessels exceed quality expectations and ensure long-term reliability.
Need to protect your investment long-term? Learn how proper pressure vessel maintenance extends service life and keeps your equipment compliant.

Looking for a complete process solution? Pair your pressure vessel with our reactors, columns and towers, or shell & tube heat exchangers — and keep everything running at peak performance with our after-sale services.
FAQ
What defines a pressure vessel and what is the threshold according to European standards?
A pressure vessel is generally considered any container designed to hold fluids under pressure. In Europe, according to the Pressure Equipment Directive (PED), a vessel is classified as a pressure vessel when the internal design pressure exceeds 0.5 barg. This value can vary depending on the country or region, so it’s essential to refer to local regulations for accurate definitions.
What materials are used in the construction of pressure vessels?
We design and manufacture pressure vessels using a variety of materials, including stainless steel, high nickel alloys, duplex, superduplex, cladding, and titanium, depending on the specific requirements of each application.
Do your pressure vessels meet international standards?
Yes, all our pressure vessels are designed and manufactured to meet international standards, including ASME, PED, ISO 9001, and other relevant certifications, ensuring top-notch safety and performance.
How do you perform stress analysis for pressure vessel design?
We use advanced Finite Element Analysis (FEA) to perform stress and thermal analysis on our pressure vessels. This allows us to optimize material selection, wall thickness, and design features to ensure the vessel’s integrity under operating conditions, taking into account factors such as pressure, temperature, and mechanical loading.
What is the difference between a pressure vessel and a storage tank?
A pressure vessel is engineered to safely contain fluids or gases at pressures significantly above or below atmospheric pressure, requiring thicker walls, reinforced heads, and strict design codes like ASME Section VIII. A storage tank typically operates at or near atmospheric pressure, so its construction requirements are considerably less stringent.
What industries use custom pressure vessels?
Custom pressure vessels are used across the oil & gas, petrochemical, pharmaceutical, hydrogen, and pulp & paper industries wherever gases or liquids must be safely stored or processed under pressure. InoxTorres engineers vessels in stainless steel, duplex, superduplex, and titanium to match each industry’s pressure, temperature, and corrosion-resistance needs.
What do the ASME U, U2, and R stamps mean for pressure vessels?
The ASME U stamp certifies vessels built to Section VIII, Division 1; the U2 stamp applies to Division 2 vessels designed for higher pressures; and the R stamp authorizes repair and alteration work. InoxTorres holds these certifications, allowing us to design, fabricate, and service pressure vessels to strict international standards.
Can pressure vessels be customized for hydrogen applications?
Yes. Hydrogen service requires vessels built from compatible materials, such as stainless steel or specialty alloys, with design features that account for hydrogen embrittlement. InoxTorres engineers custom pressure vessels specifically for hydrogen storage and processing, supporting energy-transition and green hydrogen projects.
















