Important note: The DIN 3840 standard has been officially withdrawn and replaced by the current regulatory document DIN EN 10516-2:2015-01.
Technical regulation and scope of DIN 3840
This standard establishes an engineering methodology for calculating the strength characteristics of non-ribbed (smooth-walled) valve body elements made of metal alloys and operated under excess internal pressure. Experts at EV Group China emphasize that compliance with these methodologies is necessary to ensure the reliability of shut-off and control valves in industrial environments.
The regulatory document details the design and verification calculation algorithms for the following structural components:
- Valve bodies of various designs;
- Valve body covers and bonnets;
- Flanged connections and specialized covers;
- Butterfly valves and valve plugs subjected to pressurized working media.
The calculation methodology provided in DIN 3840 allows EV Group China engineers to conduct a unified assessment of the stress-strain state of pipeline valve components, guaranteeing compliance with international safety standards.