DVGW (German gas and water industry association) has been committed to the technical and economic development of the water and gas industry since its establishment in 1859, and has always paid special attention to safety, sanitation and environmental protection. DVGW's technical rules lay a solid foundation for the safety and reliability of the management of the German supply industry. DVGW certification is the German gas and water industry association to develop the certification, for faucets and pipe fittings and other heating sanitary products, DVGW logo means that is the most authoritative product quality certification in Germany.

DVGW certified sanitary ware products: pipes, valves, faucets, fittings, fittings and other sanitary ware products

Certification requirements:

Product performance requirements: meet the relevant DVGW standard requirements;

Raw material requirements: non-metallic or functional parts of KTW,W270 certificate, metal materials related requirements;

Factory system: need to carry out factory audit, control the production process of the factory;

Certification process:

A. Fill in the application form and submit the certification application;

B. The German laboratory accepts the application and reviews the application materials;

C. Provide supporting documents required for certification: drawings, specifications, parts certification documents, etc.;

D. Conducting relevant tests and obtaining test reports;

E. Carry out factory audit and obtain audit report (which can be carried out simultaneously with the test);

F. Submit all materials and reports to DVGW license-issuing agency to obtain the certificate.

G. Conduct annual factory audit and pay annual fee.