PRD Components

About Pressure Relief Devices (PRD)

A pressure relief device (PRD) is a device that protects equipment or RBI Components from pressure buildup. In RBI, you will store information about PRDs in records belonging to subfamilies of the PRD Components family.

Specifically, RBI supports the use of the following types of PRDs:

Pressure relief valves (stored in Criticality Calculator PRD Component - Relief Valve records)
Rupture disks (stored in Criticality Calculator PRD Component - Rupture Disk records)

Note: Throughout this documentation, where the distinction between the two subfamilies is irrelevant to the discussion, you will see the term PRD Components to refer to a record in either subfamily.

About Identifying Protected Equipment or RBI Components

After you have created a PRD Component to identify a pressure relief device (PRD), you can identify the equipment or RBI Components that the PRD protects.

A PRD can protect either equipment or RBI Components, but not both.
- If a PRD protects equipment, it can protect one or many pieces of equipment.
- If a PRD protects RBI Components, it can protect one or many RBI Components.
A single piece of equipment can be protected by multiple PRDs.
A single RBI Component can be protected by multiple PRDs.
If you identify a new protected equipment or RBI Component for a PRD for which an RBI PRD Analysis already exists, the existing RBI PRD Analysis will become invalid. You will need to create a new RBI PRD Analysis to account for the new protected equipment or RBI Component.

About Integration with Thickness Monitoring (TM)

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

About Using TM Analysis Values at the Asset Level

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

About Using TM Analysis Values at the Thickness Monitoring Location (TML) Group Level

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

Access a PRD Component

About This Task

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the Asset Summary workspace for the asset that contains the PRD Component that you want to access.

-or-

Access the Corrosion Loop that contains the PRD Component that you want to access.
Below the graph, select the link corresponding to the component that you want to access.

-or-

In the left pane, select the component that you want to access.

The workspace for the selected component appears, displaying the Component Overview section.
Select the Component Details tab.

The Component Details section appears, displaying the datasheet of the Component.

Note: If needed, modify values in the available fields, and then select to save your changes.

Create a PRD Component

About This Task

This topic describes how to create a new PRD Component and link it to an Asset or a Corrosion Loop. You can also link an existing PRD Component to an Asset or a Corrosion Loop.

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the Asset Summary workspace of the asset in which you want to create a PRD Component.

-or-

Access the Corrosion Loop in which you want to create a PRD Component.
In the left pane, select , and then select Create New Component.

The Create New RBI Component window appears.
Enter values in the following fields:
- Asset: This field is automatically populated with the asset for which you are creating a PRD Component.
- Component Family: Select the component family for the Component that you want to create.
- Component Type: Select the component type for the PRD Component that you want to create.
Select Create.

A new PRD Component is created, and is automatically linked to the selected Asset and the Corrosion Loop. The Component Details section appears, displaying the component datasheet.
Enter values in the available fields.
In the upper-right corner of the datasheet, select .

The changes made to the PRD Component are saved.

Results

The PRD Component inherits linked Potential Degradation Mechanisms from the RBI Corrosion Loop.

What To Do Next

Link a Protected RBI Component to a PRD Component.

Link PRD Components to an RBI Corrosion Loop

About This Task

This topic describes how to link existing PRD Components to an Asset or Corrosion Loop. You can also create a new PRD Component.

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the Corrosion Loop that you want to link to a PRD Component.
In the left pane, select , and then select Link Existing Component.

The Select RBI Components window appears, displaying a list of components in the same site that are not linked to a Corrosion Loop.
Select the check boxes that correspond to the components that you want to link, and then select Done.

The selected PRD Components are linked to the Corrosion Loop.

Results

The PDMs that are linked to the Corrosion Loop are linked to the PRD Components, in addition to the ones that are directly linked to the component.

What To Do Next

Link a Protected RBI Component to a PRD Component.

Unlink a PRD Component from an RBI Corrosion Loop

About This Task

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the Corrosion Loop from which you want to unlink the PRD Component.
In the left pane, select the PRD Component that you want to unlink from the Corrosion Loop, and then select .

-or-

Below the graph, next to the PRD Component that you want to unlink from the Corrosion Loop, select the check box, and then select .

A message appears, asking you to confirm that you want to unlink the selected PRD Component.
Select Yes.

The PRD Component is unlinked from the selected Corrosion Loop.

Link a Protected RBI Component to a PRD Component

Procedure

Access the PRD Component to which you want to link a Protected RBI Component.

Tip: This documentation assumes that you will you will link a Protected RBI Component to a PRD Component. The same operations apply if you link a Protected Asset to a PRD Asset.
In the upper-right corner of the page, select , and then select Add Protected Components.

The Select Protected Components window appears.
In the Hierarchy section, navigate to and select the asset that contains the RBI Component that you want to link.

A list of available RBI Components in the selected asset appear in the Available RBI Components section.
In the Available RBI Components section, select the RBI Component that you want to link.

The selected component appears in the Selected RBI Components section.
Select Done.

The selected RBI Component is now linked to the PRD Component.

What To Do Next

Link Potential Degradation Mechanisms (PDMs) to a PRD Component.

Unlink a Protected RBI Component from a PRD Component

Procedure

Access the PRD Component to which you want to link or unlink a Protected RBI Component.
Tip: This documentation assumes that you will you will unlink a Protected RBI Component from the PRD Component. The same operations apply if you unlink a Protected Asset from a PRD Asset.
In the left pane, select the protected RBI Component that you want to unlink from the PRD Component.
In the left pane, select .

A message appears, asking you to confirm that you want to unlink the selected Protected RBI Component.
Select Yes.

A message appears, specifying that after you link or unlink protected assets or components, you must calculate the RBI PRD Analysis again to view updated results.
Select Yes.

The Protected RBI Component is unlinked from the PRD Component.

Link Potential Degradation Mechanisms (PDMs) to a PRD Component

About This Task

If the PRD Component is linked to a Corrosion Loop, then all the PDMs linked to the Corrosion Loop are also linked to the Component. You can, however, link additional PDMs to the Component.

This topic describes how to link one or more PDMs to a PRD Component. You cannot create PDMs; you can only link them. Therefore, a PDM must already exist to be linked to a PRD Component.

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the PRD Component to which you want to link PDMs.
Select the Potential Degradation Mechanisms tab.

The Potential Degradation Mechanisms section appears, displaying a list of PDMs linked to the PRD Component.
Select Add PDM.

A list of PDMs appears, displaying the methodology type of each PDM.

Tip: If you select the link that corresponds to a PDM, the PDM record appears in Record Explorer on a new page.
Next to each PDM that you want to link to the PRD Component, select the check box, and then select OK.

Note: PDMs that can be used with an RBI 581 Risk Analysis contain a 581 prefix (e.g., 581-Amine Cracking).

The selected PDMs are linked to the PRD Component.

What To Do Next

Create an RBI PRD Criticality Analysis.

Unlink a Potential Degradation Mechanism (PDM) from a PRD Component

About This Task

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the PRD Component from which you want to unlink a PDM.
Select the Potential Degradation Mechanisms tab.

The Potential Degradation Mechanisms section appears, displaying a list of PDMs linked to the PRD Component.
In the row that contains the PDM you want to unlink from the PRD Component, select .

A message appears, asking you to confirm that you want to unlink the selected PDM.
Select Yes.

The PDM is unlinked from the PRD Component.

Apply a PRD Component

About This Task

When you apply a PRD Component, you make a copy of the original record. The applied PRD Component is not automatically linked to the original RBI Component's Corrosion Loop. Instead, the applied RBI Component can be linked to the same or a different asset and then to a Corrosion Loop.

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the PRD Component that you want to apply.
In the upper-right corner of the page, select .

The Hierarchy Finder window appears.
Navigate through the Hierarchy Finder to select the asset to which you want to apply the PRD Component.
Select OK.

The PRD Component is applied to the selected asset.

What To Do Next

Link PRD Components to an RBI Corrosion Loop

Delete a PRD Component

Before You Begin

About This Task

Important: To distinguish PRD Components from RBI Components in a Corrosion Loop, PRD Components have the icon

before the Component ID. All PRD Components function the same way as RBI Components.

Procedure

Access the Asset Summary workspace of the asset that is linked to the PRD Component that you want to delete.

-or-

Access the Corrosion Loop that is linked to the PRD Component that you want to delete.
Next to the Component what you want to delete, select the check box next, and then select .

A message appears, asking you to confirm that you want to delete the selected PRD Component.
Select Yes.

The PRD Component is deleted, and all links to existing related entities are removed.