Our customers are increasingly demanding industry-standard approvals by independent certification bodies, who are responsible for confirming the suitability, dimensional tolerance and clearance of a product. SERTO offers the following additional approvals:

Certificate DNV

Established in 1864 as DNV, DNV is an independent foundation with the objective of safeguarding life, property and the environment and is a leading international provider of services for managing risk.

DNV has certified our stainless steel compression ferrules SO 50001.

Certificate Stainless Steel

Certificate SGWA (SVGW)

SGWA stands for the Swiss Gas and Water Industry Association with head offices in Zurich. The SGWA is an association of gas and water utilities, as well as of interested circles from business, research, science and administration.

Certificate "Gas" for Bras M, G and Stainless Steel

Certificate GGWA (DVGW)

GGWA stands for the German Gas and Water Industry Association in Bonn which, as the oldest technical-scientific association world-wide, has been serving its members for more than 140 years.

Type Examination Certificate Brass M

Type Examination Certificate Brass G

Type Examination Certificate Stainless Steel

Certificate ABS

The mission of ABS is to serve the public interest as well as the needs of our clients by promoting the security of life, property, and the natural environment primarily through the development and verification of standards for the design, construction and operational maintenance of marine-related facilities.

Certificate "Design Assessment" Stainless Steel

Certificate Lloyd's Register

Lloyd's Register is an independent technical organisation providing risk assessment and risk management solutions and management systems certification around the world.

Type Approval Certificate Stainless Steel unions

Type Approval Certificate Brass M unions

Manufacturer accreditation for fusion welding

SERTO meets the standard quality requirements for fusion welding of metallic materials according to EN ISO 3834-3.

Certificate Manufacturer accreditation

Accreditation for the transfer of markings

Accreditation for the purpose of transferring material identification markings on semi-finished products or components.

Certificate Accreditation for the transfer of markings