What is the recommended method for checking the operation of a steam pressure relief valve?

The recommended method for checking the operation of a steam pressure relief valve is through monthly operational testing. This practice ensures that the valve is functioning correctly and can respond appropriately to overpressure conditions. Regular testing is crucial for maintaining safety standards, as it verifies that the valve will open at the designated pressure and is not blocked or malfunctioning.

Conducting these tests monthly allows personnel to detect any issues early, minimizing the risk of equipment failure or dangerous pressure build-up that could potentially lead to catastrophic failures. Operational tests not only confirm that the valve opens under pressure but also ensure all components are in good working condition.

Visual inspection alone is insufficient, as it does not provide confirmation of the valve's ability to function under actual operating conditions. Similarly, while routine calibration once a year is valuable, it does not substitute for more frequent testing to ensure safety and compliance in active systems. Monthly tests strike a balance between thoroughness and practicality, ensuring a safer operating environment.