| Over-pressurization | The valve does not release pressure as intended, leading to system failure. | Faulty valve, improper settings, or fluid contamination. | Check valve functionality, verify pressure settings, and inspect fluid quality. | Regular maintenance and setting verification. | 
| Leakage | Fluid leaks from the valve, causing pressure drops and system inefficiency. | Worn seals, loose connections, or corrosion. | Inspect seals and connections; replace worn components. | Use quality materials and perform regular inspections. | 
| Noise | Unusual sounds during operation may indicate issues within the valve. | Cavitation, incorrect pressure settings, or mechanical wear. | Listen for abnormal sounds, adjust pressure settings, and inspect for wear. | Regular lubrication and adjustment of system parameters. | 
| Failure to Open/Close | The valve fails to respond to pressure changes, resulting in inefficient operation. | Blockages, mechanical failure, or wrong calibration. | Check for blockages, test the actuator, and recalibrate if necessary. | Keep the system clean and calibrate regularly. |