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    Proper maintenance and testing of relief valves are essential to ensure they are functioning properly and providing the necessary protection. Regular inspections, testing, and calibration of relief valves are critical to ensure they will operate as designed in the event of an overpressure situation.

    The operation of a pressure reducing valve is based on a simple but effective principle. PRVs utilize a spring-loaded diaphragm that senses the downstream pressure. When the downstream pressure rises above a preset level, the valve reacts by closing partially or completely, thereby reducing the pressure entering the system. Conversely, if the downstream pressure drops too low, the valve opens more to allow additional fluid flow, maintaining the desired pressure. This feedback mechanism ensures that the system operates efficiently and safely.