Quality that convinces

Certification of SISTO products
Our products are certified for your benefit.

As a manufacturer of valves and related systems we confirm that the products we supply comply with applicable standards and customer specifications regarding performance, quality and safety. We work to the latest quality standards, as evidenced by the respective certificates.

PED (Pressure Equipment Directive)

Our Echternach location has been certified to the Pressure Equipment Directive.

AD 2000 - Merkblatt HP O / DIN EN ISO 3834-3

Our company is a certified manufacturing and welding business to DIN EN 729-3

DIN ISO 9001:2015, DIN ISO 14001:2015 und DIN ISO 45001:2018

Certification to DIN EN ISO 9001:2008, ISO 14001:2004, BS OHSAS 18001:2007 of the quality management system at our Echternach location

DVGW (German Organization for Technical Standards in the Gas and Water Industries)

Certification to DVGW of our SISTO-16 RGA and SISTO-16 TWA valves

KTA (Nuclear Engineering Committee)

Confirmation of suitability for quality assurance on the basis of the KTA 1401 specifications


Code on Supervision and Control of Imported Civil Nuclear Safety Equipment