@mohamedebrahim Relief valve A relief valve is a safety device used in pressurized systems (such as pipelines, pressure vessels, or process equipment) to prevent overpressure by automatically releasing fluid (gas or liquid) when the system pressure exceeds a preset limit. Key Functions: Protects equipment and personnel by avoiding pressure buildup. Automatically opens when pressure exceeds the setpoint. Closes again once the pressure drops to a safe level. Video credit: unknown, please DM for cr