What should be done if a relief valve is leaking?

When a relief valve is leaking, it indicates that it is not functioning properly and could lead to unsafe conditions if left unaddressed. The most appropriate action is to replace the relief valve and check for the cause of the activation. A leaking relief valve suggests that it may be compromised, allowing pressure to escape inappropriately, which could result from wear, corrosion, or other damage.

By replacing the valve, you ensure that the pressure system is restored to a safe, operational state. It’s also essential to investigate why the relief valve was activated in the first place. This could include reviewing the system for overpressure conditions, blockages, or other operational abnormalities that might have caused the valve to open. Understanding the root cause helps prevent future occurrences and ensures the system operates safely in accordance with applicable technical standards.

Cleaning the valve or simply replacing the valve seat may not address deeper issues related to the system's performance or pressure management. Therefore, a comprehensive approach involving replacement of the valve and checking the underlying causes is crucial for maintaining safety and functionality.