The TAVINOX PRESS system has again passed DVGW testing and has certification documents both for the press fittings and for the stainless steel tubes. The DVGW certification is held under these numbers:
- • DW-8511DL0197 – DVGW certification for TAVINOX PRESS fittings
- • DV-7301AT2558 – DVGW certification for TAVINOX PRESS tubes
For designers, installation companies, MEP (building services) engineers, wholesalers and investors this is an important technical document. The certification helps to demonstrate that the TAVINOX PRESS system is suitable for use in drinking water pipework and supports its specification on projects where hygienic safety, material resistance and long-term reliability are emphasised.
What DVGW is and why the certification matters
DVGW, that is the Deutscher Verein des Gas- und Wasserfaches, is the German technical and certification organisation for the water and gas sector. In engineering practice it is one of the most respected authorities in Europe.
For drinking water pipework, DVGW certification is significant evidence that a product or a system meets the requirements for the certified scope of use. It is not merely a formal document but an independent verification of technical and hygienic properties.
DVGW certification matters above all to:
- • public health (plumbing) design engineers,
- • installation companies,
- • MEP engineers,
- • site supervision,
- • wholesalers,
- • investors and building operators.
It helps with design, with specification, with handover of the works and with defending the technical solution chosen.
TAVINOX PRESS holds DVGW certification for fittings and tubes alike
Importantly, the TAVINOX PRESS certification documents cover not only the press fittings but the tubes themselves. That is key information for designers and contractors. With drinking water pipework, the whole pipework system is assessed – the compatibility of tubes, fittings, material, joints and installation procedure.
| Area | Certificate number | What it means |
|---|---|---|
| TAVINOX PRESS press fittings | DW-8511DL0197 | confirmation that the fittings are suitable for drinking water pipework |
| TAVINOX PRESS tubes | DV-7301AT2558 | confirmation that the tubes are suitable for drinking water pipework |
As a result, TAVINOX PRESS can be presented as a certified stainless steel press system for drinking water pipework, with documented certification for the main parts of the system.
Why DVGW certification matters for drinking water pipework
Drinking water pipework is one of those installations where it is not enough to address only pressure, size and speed of installation. Hygienic safety, material stability and the long-term durability of the system matter just as much. For drinking water, the key points are:
- • the hygienic safety of the materials used,
- • corrosion resistance,
- • stability of the system in long-term operation,
- • reliability of the press joints,
- • compatibility of tubes and fittings,
- • the ability to document the suitability of the system at handover.
DVGW certification is therefore an important basis not only for the design documentation but also for installation companies, investors and wholesalers.
A stainless steel system for hygienically safe pipework
TAVINOX PRESS is a stainless steel press system for professional MEP pipework in buildings. For drinking water, what matters is the combination of hygienic stability, material resistance and an accurate press joint.
The system uses AISI 316L stainless steel, which thanks to its corrosion resistance is suitable for demanding applications in drinking water pipework. Stainless steel tube is stable and durable and, when correctly designed and installed, supports a long service life for the installation.
At the same time, press technology allows fast, clean installation with no welding and no naked flame. That is an advantage above all in plant rooms, commercial buildings, healthcare facilities, industrial installations and refurbishments.
You can read more about the certification of the TAVINOX PRESS system here: What do the DVGW, ITC and ISO 9001 certifications mean?
What it means for designers, installation companies and investors
DVGW certification for fittings and tubes alike has practical significance throughout the process – from design through installation to handover of the works.
For designers
The designer has a clear certification basis for specifying the system in the design documentation. DVGW certification helps to demonstrate that the TAVINOX PRESS system is suitable for drinking water pipework within the certified scope.
For installation companies
An installation company can work with a certified system that has documented evidence for both the fittings and the tubes. That matters above all on contracts where the investor or site supervision calls for documented quality and a certified solution.
For wholesalers
Wholesalers gain a strong technical argument for selling the TAVINOX PRESS system. DVGW certification increases the credibility of the system and helps in dealing with customers who require a certified solution for drinking water pipework.
For investors
The investor gains greater certainty that the system chosen is intended for drinking water and has the corresponding certification documents. That matters not only when selecting the material but also at handover of the works and in the long-term operation of the building.
Summary
TAVINOX PRESS received another DVGW certification on 3 November 2025. The system has again passed the tests of the respected German organisation DVGW and confirms its suitability for use in drinking water pipework within the certified scope. In practice, the key points are:
- ✓ TAVINOX PRESS holds DVGW certification for fittings and tubes alike.
- ✓ The certification of the fittings is held under number DW-8511DL0197.
- ✓ The certification of the tubes is held under number DV-7301AT2558.
- ✓ DVGW is a recognised German certification authority for the water and gas sector.
- ✓ The system is intended for drinking water pipework and uses AISI 316L stainless steel.
- ✓ The certification matters to designers, installation companies, wholesalers and investors.
- ✓ It helps with specifying the system, with handover of the works and with documenting the suitability of the material.
Frequently Asked Questions
What is DVGW certification?
DVGW certification is issued by the German organisation DVGW for products, systems and technical solutions in the water and gas sector. For the TAVINOX PRESS system it is important evidence for use in drinking water pipework.
When did TAVINOX PRESS obtain the latest DVGW certification?
We received the latest DVGW certification on 3 November 2025.
What are the numbers of the TAVINOX PRESS DVGW certificates?
The DVGW certification for TAVINOX PRESS fittings is held under number DW-8511DL0197. The DVGW certification for TAVINOX PRESS tubes is held under number DV-7301AT2558.
Why does DVGW certification matter to designers and installation companies?
DVGW certification helps to demonstrate that the system is suitable for drinking water pipework. It makes specification in the design documentation easier, builds confidence at handover of the works and provides a technical argument when choosing a system.