This standards defines terminology and prescribes general criteria for design, construction, and testing of casing and general parts of gas pressure control systems.
This Standard deals with gas pressure control systems for inlet pressure>0.04 bar up to 5 bar and outlet pressure up to 0,04 bar for I and II gas family according to EN 437.
For III family gas this standard applies limited to installation schemes and pressure up to 0,07 bar.