How often should air compressor relief valves that cannot be tested by hand be evaluated?

The correct answer is that air compressor relief valves, which cannot be tested by hand, should be evaluated semi-annually. This frequency is essential to ensure that the valves are functioning properly and can effectively relieve pressure to prevent over-pressurization in the system, which can lead to potential failures or accidents.

In practice, semi-annual evaluations provide a balanced approach between ensuring safety and managing maintenance resources. By evaluating the relief valves every six months, personnel can identify any issues or wear that might compromise the operation of the compressor before they become critical problems.

Maintaining this schedule also aligns with various industry standards and best practices regarding the maintenance of safety equipment in compressed air systems, ensuring compliance and reliability in operations. Regular assessments at this frequency help ensure that the system remains safe and efficient, minimizing risks associated with pressure failures.