ESD Valve may need SIL 2 or SIL 3 as per SIL Review,
Safety-Instrumented Functions(SIF) analysis and Safety Integrity Level (SIL) classifications for the Emergency Shut-Down Valves will be performed for the valve assembly……
As I know, Metso can supply SIL 3 ESDV according to the Catalogue.
There are diesel and gas oil storages in tank farm,
And line-type heat detectors installed on tanks for fire detection,
Then whether the Manual fire alarm boxes needed for the tanks?
I can't find the information in NFPA 72, help please!