Emergency Valves in Process Safety Systems Emergency valves are safety-critical devices that decide whether a plant lives or dies in an incident. Properly designed and tested Emergency Shutdown Valves (ESDVs) and Emergency Blowdown Valves (EBDVs) protect people, the environment, and assets in oil & gas, petrochemical, refinery, and power facilities. Despite similar names, ESDV vs … Continue reading ESDV vs EBDV – Fail Close vs Fail Open | Emergency Shutdown Valve vs Emergency Blowdown Valve