Teseo carries out inspection of all aspects of production to guarantee the suitability of its products. All parts are checked, not only at the manufacturing process but also during all the different assembly processes.

Each item is clearly identified by a product sheet with all the checks to be done according to the critical features of the products and its sizing using a plan sampling according to the standard UNI ISO 2859 that enables us to define a LQA chosen through 1.5, 2.5 and 6.5.

We carry out the quality check of the material by using the sampling frame in accordance with UNI ISO 2859. For each drawing there is a specific check sheet. In each item sheet there is a list with the checks to be done, according to the criticality of the dimension we settle check coefficient “LQA” (acceptable quality limit). To be chosen among 1.5, 2.5 and 6.5.

Teseo’s pipework system undergoes 10 functional, dimensional and aesthetical checks during all the production and packaging processes. Teseo works with a product traceability process, where specified. This procedure allows Teseo to verify all the documentation in case of a non conformity and to point out the possible faults in the production process. Such procedure enables us to follow up the quality of our products with suppliers.

Further, we have planned preventive checks and settings of our measurement instruments. Written procedures were defined in order to regulate the setting’s modalities and their frequency. Such procedures have been set for all those instruments and devices which can affect the safety and the quality of our production.


SGS, the most famous certification institute, analyses and approves our management system, with an annual audit for the checking of the level and its improvement..

Teseo components are tested in our internal test department and also through external certified structures SIT, ISPEL, UNI or institutes such as SGS, TUV, TSSA and others.

Our quality management department collaborates with external qualified and experienced consultants in our industrial field.

Teseo components are manufactured with quality raw materials according to standard ISO: UNI en 755-2, UNI EN 755-3, UNI EN 515, UNI EN 573-3, UNI EN 1706, UNI 5931, UNI EN 1461, UNI EN 3601 and others.

Teseo components are tested according to various procedures; The TUV institute checked an assembly of the HBS, testing it to cyclical pressurization; The AQM society tested the principal components of the AP range up to 120 bars with a range of temperature from -20°C to +130°C; the SGS institute certified that the AP system succeeded with the failure test pressure at 160 bars.

The University of Torino independently tests and measures the flow rates of our piping while the Brescia university is co-operating with specific technical consultants. The calibration tools used in Teseo are regularly tested and certified by MG. Teseo pipework systems are in compliance with the US standards ANSI B31.3 and B31.9. Approved by the Certification Bodies of the different provinces of Canada

Teseo pipework systems are designed, manufactured and tested according to the safety requirements of the European Standard 2014/68/UE (PED). Kiwa has determined that the quality management system of Teseo Srl meets the requirements of Annex III, E1 of the Pressure Equipment Directive 2014/68/UE.


Since 1997 Teseo has a system for quality management, certified with respect to the ISO 9002 regulations. During 2004 the certification has been extended to include the full designing and manufacturing process, according to the norms ISO 9001 (so called “Vision”). In 2009 Teseo s.r.l. has been certified according to UNI EN ISO 9001:2008.


The HBS modular piping system is certified by TÜV for the distribution of compressed air.

Performance rated by the University of Torino.

The analysis of the air flow rates and relative pressure drops were carried out at the laboratories of the Politecnico of Torino (Italy) (Research report n° A1089/97)


The HBS modular piping system is ASME compliant for the distribution of compressed air.


All extruded profiles manufactured by Teseo Srl are made with aluminium in accordance with the UNI EN 573-3 norm.

PED 2014/68/UE

The Teseo modular piping systems are produced in accordance with the PED 2014/68/UE norm for equipment under pressure.