API 520/521 Pressure Relieving Systems

Preliminary Registration Form

Please fill out the preliminary form below for this API-U Approved course. After the form has been submitted, the training provider will reach out to you regarding further registration information.

Course Outline

• Basic Terminology
• Pressure Relief Valve (PRV) Design and Operation
• PRD Codes and Standards
• PRV Sizing and Selection: Vapor, Liquid, and Steam
• Two-Phase PRV Sizing Methods
• Installation Requirements including 3% Rule
• Relief System Design Philosophy
• Use of Isolation Valves
• Overpressure Scenarios and Determination of Relief Loads
• Rupture Disks’ Usage and Installation
• Overpressure Protection of Atmospheric Storage Tank

Course Outcomes

By the end of this course, participants will be able to:

• Summarize the requirements of the API 520/521 and 2000 Standards
• Explain the operation of the different relief valves and rupture disks and the limitations of each
• List the many causes of overpressure and state how to identify them
• Recall the relief flow requirements and detail how to calculate flow rates for proper sizing
• Recognize proper sizing, selection, and installation of PRDs
• Appreciate the importance and requirements of sizing documentation
• Summarize the application of good engineering judgement as it relates to the infamous “3% Rule” and relief valve stability
• Evaluate your facility’s compliance with OSHA and RAGAGEP requirements

Who Should Attend

This course is intended for:

• Federal and state regulatory personnel who oversee safety and environmental protection
• Engineers who design process systems and pressure vessels
• Process plant equipment operations personnel
• Maintenance personnel who inspect and install PRDs
• Engineers involved in plant turnaround/upgrade projects
• PRD manufacturer/technical sales representatives