Learning Objectives

Upon successful completion of this course, participants will be able to:

1. Introduction to Pressure Relief Systems

• Understand the need for pressure relief devices in industrial operations.
• Identify common causes of overpressure in process systems.
• Learn about different pressure relief methods (passive and active protection systems).

2. Types of Pressure Relief Devices and Their Applications

• Pressure Relief Valves (PRVs):
• Spring-loaded pressure relief valves.
• Pilot-operated relief valves (PORVs).
• Balanced bellows relief valves.
• Rupture Discs:
• Reverse-buckling vs. forward-acting rupture discs.
• Applications and integration with PRVs.
• Blowdown and Venting Systems:
• Pressure safety valves (PSVs) vs. pressure vacuum relief valves (PVRVs).
• Emergency depressurization and flare systems.

3. Design and Sizing of Pressure Relief Systems

• Learn API 520, API 521, ASME, and OSHA regulations for relief system design.
• Apply pressure relief valve sizing calculations:
• Gas and vapor relief scenarios.
• Liquid relief and two-phase flow considerations.
• Understand blowdown and flare system capacity calculations.

4. Installation and Operational Best Practices

• Ensure proper valve orientation, inlet/outlet piping design, and backpressure control.
• Implement regular inspection, testing, and maintenance protocols.
• Prevent chattering, valve sticking, and improper reseating.

5. Safety and Risk Assessment in Pressure Relief Systems

• Conduct HAZOP and LOPA studies for overpressure scenarios.
• Implement Emergency Shutdown (ESD) and High Integrity Pressure Protection Systems (HIPPS).
• Assess flare gas dispersion and environmental compliance.

6. Troubleshooting and Failure Analysis

• Identify and resolve common PRV failures:
• Leaks, corrosion, improper set pressure, and seat damage.
• Rupture disc premature bursting or failure to operate.
• Use predictive maintenance and diagnostic tools for PRV monitoring.

7. Regulatory Compliance and Environmental Considerations

• Follow API, OSHA, ASME, NFPA, and EPA guidelines for relief system management.
• Implement flare gas recovery and emissions reduction techniques.
• Ensure compliance with process safety management (PSM) requirements.

8. Case Studies and Practical Applications

• Analyze real-world pressure relief system failures and their consequences.
• Participate in hands-on exercises for PRV sizing and selection.
• Develop a customized maintenance and inspection plan for pressure relief devices.

Target Audience

• Process engineers and plant operators
• Mechanical and maintenance engineers
• Safety and reliability professionals
• HSE and compliance officers
• Facility and asset integrity managers