March, 2002

200201MarAll DayLayers of ProtectionProcess Safety BeaconLessons:Risk AssessmentLanguage:EN Origin: CCPS Document Type:BulletinTopics:LOPA


What do layers of protection accomplish?

• A well designed facility includes multiple items of protection for equipment;
• These frequently include a number of the following: operator monitoring, procedures, alarms, interlocks, pressure rated equipment and relief/vacuum valves, and
• In most cases, multiple systems must fail before vessel damage occurs

© AIChE | Messages for Manufacturing Personnel


CCPSCenter for Chemical Process Safety