A pressure relief valve (PRV) is a safety device designed to protect pressurized systems—such as pipelines, tanks, or industrial equipment—from damage or failure due to excessive pressure. It automatically opens at a predetermined pressure level to release excess fluid (liquid or gas), thereby preventing pressure buildup that could cause system rupture or hazardous conditions. Once the pressure returns to a safe level, the valve closes again, maintaining system integrity. PRVs are essential components in many industries, including oil and gas, chemical processing, and water systems, where pressure regulation is critical for safe and reliable operation.
