Pressure Safety Valves
Project Overview
Engineering Design Services provided comprehensive plant engineering support for the evaluation and revalidation of over 100 pressure safety valve (PSV) and pressure relief valve (PRV) packages at a chemical facility in South Texas. The project focused on ensuring reliable overpressure protection, regulatory compliance, and continued safe operation of critical process systems within an active industrial environment.
Result & Impact
• Successfully revalidated over 100 PSV and PRV packages across an operating facility
• Improved overall process safety through confirmed overpressure protection integrity
• Enhanced regulatory compliance and risk management performance
• Provided clear, prioritized engineering recommendations for corrective actions
• Supported informed capital planning and maintenance decision-making
• Strengthened reliability and safety of critical process systems in continuous operation
Engineering Tools & Technologies
• Pressure relief system engineering and analysis
• PSV/PRV sizing and revalidation calculation tools
• Process safety and overpressure scenario modeling
• Fluid property and flow analysis methods
• Field inspection and verification techniques
• Industrial process safety management (PSM) practices
• Engineering documentation and reporting systems
Scope
• Review existing PSV/PRV design basis documentation and prior studies
• Evaluate credible overpressure scenarios for each system
• Verify fluid physical properties and operating conditions
• Reassess valve sizing calculations using established flow rates
• Validate relief scenarios using standardized engineering calculation tools
• Perform field verification of installed valve configurations
• Compare field conditions against design assumptions
• Document equipment condition and performance assessment results
• Provide engineering recommendations for each PSV/PRV package
Solution
Engineering Design Services executed a systematic revalidation program across all PSV and PRV packages. Each system was independently reviewed using updated calculation methodologies and verified against actual field conditions. Engineers assessed overpressure scenarios, recalculated valve requirements where necessary, and confirmed installation accuracy through field verification. Findings were compiled into structured reports that provided clear engineering justification and actionable recommendations for each relief device.
