standard colour of VAG valves changes from red to blue.
This change is in line with VAG’s membership in the Gütegemeinschaft Schwerer Korrosionsschutz von Armaturen und Formstücken (GSK – Quality Assurance Association for Heavy-Duty Corrosion Protection of Valves and Fittings).
The quality association is a joint organisation of the largest valve manufacturers aiming at creating consistently high standards in drinking water supply.
The quality mark guarantees a tested, flawless standard of coating ensuring a future-proof solution for the mains supply networks of drinking water, waste water and gas. It is only awarded to manufacturers that satisfy the stringent requirements of the GSK Quality and Inspection Regulations’ extensive quality assurance.