In operating one’s refrigerating system, what regular checks are necessary for pressure relief valves?

For pressure relief valves in a refrigerating system, functionality testing and inspection are essential to ensure that they operate correctly under pressure conditions. These valves are critical safety components designed to release refrigerant from the system when pressure exceeds safe levels. Regular functionality testing confirms that the valve can open and close as intended, ensuring that it will activate in case of an overpressure situation. Inspection involves checking for signs of wear, corrosion, or other issues that could prevent the valve from functioning when needed.

While visual inspections and leak checks are also important, they do not guarantee the operational readiness of the valve under pressure. Calibration of pressure settings is a specific maintenance task but does not encompass the ongoing need for regular functionality checks. Keeping the relief valve in proper working order helps prevent equipment failure and ensures compliance with safety regulations.