Gas stop valves for domestic gas installations up to 5 bar - Part 4: Conformity assessment
And replaced
by 2026-09 for: DIN 3537-1:2011-09 ,
DIN 3537-4:2025-02
This document specifies the requirements for the conformity assessment of gas stop valves that do not fall within the scope of DIN EN 331, namely ball and plug valves with a nominal diameter ...
This standard is part of the DVGW body of rules.