UNE-EN 60534-2-1:2011/AC:2015 Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (Endorsed by AENOR in June of 2015.)
2015UNE-EN 60534-2-1:2011/AC:2015 Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (Endorsed by AENOR in June of 2015.)
2011UNE-EN 60534-2-1:2011 Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (Endorsed by AENOR in September of 2011.)