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DVGW Certification

The "Deutsche Verein des Gas- und Wasserfaches e.V." (German Technical and Scientific Association for Gas and Water)  is the German Association for Gas and Water. The DVGW was founded more than 150 years ago. The main task of this association is to create the technical regulations for safety and reliability of gas and water supply. The DVGW rules and DIN standards are the essential basics for all technical and scientific activities of the gas and water distribution.

The DVGW approval for valves is the confirmation for compliance of the current rules. Vales which are tested in accordance of the DVGW rules  guarantee applicable norms and high quality. The DVGW approval confirmed also a high level of safety, hygiene and functionality.


  • ERHARD GmbH & Co. KG
  • Meeboldstra├če 22
  • 89522 Heidenheim, Germany