Manually operated ball valves & closed bottom taper plug valves for gas installations for buildings

This approval requirement specifies the requirements for manually operated ball valves and closed bottom taper plug valves for domestic and commercial installations not directly buried, inside or outside of buildings, using gases of the second and third family as specified in EN 437. The maximum working pressure of the manually operated ball valves and closed bottom taper plug valves are 0,2, 0,5, 1, 5 or 20 bar.