If you’re a water purification OEM, system integrator, or working on a chemical industry project in Europe, you already know that your vessels require reliable pressure resistance, mechanical strength, traceable materials, robust documentation, and manufacturing quality that stands up to technical scrutiny.
With manufacturing in Europe and broad international project experience, we support customers who need proven vessel performance and technical confidence.
We supply stainless steel pressure vessels specifically designed for ion exchange and other water treatment applications. Our customers typically integrate their own resins and internal components before bringing complete systems to market.
Depending on project requirements, the vessels can be manufactured from either AISI 316Ti or AISI 316L, and supplied with CE certification and, where relevant, ASME Section VIII (U-Stamp). Configuration options include DN40 clamps, and G1/2″, G3/4″, or 3/4″ NPT connections, and other project-specific formats aligned with European integration requirements.
For drinking water projects, our ability to assess the suitability of materials, documentation, and compliance requirements applicable to components in contact with water and connection standards is particularly important.
Ask us about custom sizes, pressure adaptations, fitting changes, gasket options, and documentation requirements.
Compared with alternative materials such as fiberglass, stainless steel offers greater mechanical strength, better pressure and vacuum resistance, and enhanced durability. In safety-critical applications, stainless steel tends to deform before failing, which is a significant advantage.
Thanks to their high material integrity, reliable weld quality, and flexible customization options, our vessels support hygienic environments and critical processes, including high-temperature operations.
In European drinking water applications, stainless steel can help reduce compliance complexity by eliminating the need for internal linings, as the EU Drinking Water Directive and related conformity requirements are increasing scrutiny on materials in contact with drinking water.
Key features include:
If your company designs, integrates, or supplies ion exchange water treatment systems, THIELMANN can support your application with high-quality stainless steel vessels and strong technical backing.
Standard vessel options available. Custom modifications on request.
"*" indicates required fields
Find answers to common questions below. If you need further assistance, feel free to reach out to us.
Do you supply vessels to European customers across different markets and applications?
What kind of companies do you typically work with?
Can your team help us evaluate whether we need a standard vessel or a modified solution?
What pressure ratings are available for these vessels?
How does stainless steel support long-term operational reliability?
What matters most for compliance in European drinking water projects?
How quickly can THIELMANN review a quotation request?
How do THIELMANN containers contribute to sustainability or environmental safety?
Discover our next-generation stainless steel drums. Redesigned for performance, offered in open and tight head, and sized from 100-200L (ø570 and ø670). Ready for healthcare & pharma, chemicals, food processing, and more.
Stainless steel supports durability, pressure resistance, and long service life in industrial water treatment applications.
CE, PED, ASME, ADR, DOT
Assured safety and regulatory adherence.
Containers from 2,5 to 1.250 Liters
Connection layouts, fittings, finishes, and configuration changes available to support system integration needs.
Stainless steel supports durability, pressure resistance, and long service life in industrial water treatment applications.
CE, PED, ASME, ADR, DOT
Assured safety and regulatory adherence.
Connection layouts, fittings, finishes, and configuration changes available to support system integration needs.
