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Clean piping solutions
Our clean piping technologies allow the transport of all fluids for which a high degree of purity, chemical resistance or high temperature is required.
Reliable technologies
Barré has been manufacturing high purity stainless steel piping for more than three decades, for companies in the biopharmaceutical and biotechnological sectors, animal and nuclear medicine, laboratories and research centres, hospitals, and in general high purity sectors such as microelectronics, fine chemistry, cosmetics, pharmaceuticals and nutrition. Barré offers its clients trustworthy solutions that are constantly evolving.
All types of fluids
Barré offers you new installations and maintenance for various types of fluids :
- WFI (Water For Injection)
- PS (Pure Steam)
- PW (Purified Water)
- CAP (Compressed Air Process) and inert gases
Adaptability to other fluids, other environments including ATEX (Explosive Atmosphere) and specific installation conditions.
A team of certified welders
Barré works with a team of certified welders in accordance with ISO 14732 and ISO 9606-1 standards. All our welding operations are carried out using QMOS certified by an accredited certification body in accordance with the ISO 15614-1 standard.
Our staff has the expertise for manual and orbital welding of clean pipes thanks to our ultra-modern equipment, including portable and fixed orbital welding machines with open and closed heads.
We also cover the complementary fields of welding: machining, laser cutting, electro erosion, peek coating, electropolishing, passivation.
100% traceability
Our quality system guarantees 100% traceability of our equipment and products. Our technical files systematically include these elements:
- Material certificates
- Passivation report
- Roughness certificate
- Non-destructive testing (hydraulic test, radiography, boroscopy)
- Welder's certificate of qualification
- WPS (Welding procedure specification)
- WPQR (Welding procedure qualification record)
- Welding book, listing each weld and locating it on the installation
- Project specific weld inspection results in compliance with customer and legal requirements
Our other specialties

Air processing
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Tailor-made stainless steel
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Anesthesia table
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