A PRD Analysis for a pressure relief device can be created once you have identified at least one piece of equipment or RBI Component that it protects. PRD Analyses function the same way as RBI Analyses.
However, the following features that are available for RBI Analyses are not available for RBI PRD Analyses:
- Creating What If Analyses from RBI PRD Analyses
- Copying RBI PRD Analyses
- Specifying that TM Analysis values at the TML Group level be used to calculate RBI corrosion rate values
When you create a Criticality Calculator PRD Component:
- When prompted to select an Equipment, you should select the Equipment that represents the pressure relief device itself.
- When prompted for the Component family, you should select one of the following options:
Criticality Calculator PRD Component - Relief Valve
Criticality Calculator PRD Component - Rupture Disk
- When prompted for the Component Type, you should select one of the following options:
Balanced Bellows PRD
Conventional PRD
Pilot-Operated PRD
PRD with Rupture Disk
Rupture Disk Only
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An Equipment that represents a Pressure Relief Device cannot be linked to both RBI Components and PRD Components.