Definition(s)
Shutdown Valves, Emergency
Used to shut down flow line from rotating head in emergency situations, preferably butterfly or similar quick – closing design See ESD.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
Used to shut down flow line from rotating head in emergency situations, preferably butterfly or similar quick – closing design See ESD.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards