Valve leakage is a common issue that may result from damaged sealing surfaces, degraded packing, bent stems, or improper assembly. Countermeasures include replacing damaged sealing surfaces, selecting and regularly replacing appropriate packing, inspecting and correcting stem deformation, and ensuring proper valve assembly.

Valve clogging is typically caused by an excessive amount of impurities or particles in the medium. Preventive measures include installing filtration devices upstream of the valve to minimize impurity entry, routinely inspecting and cleaning the valve interior to maintain clear passageways, and selecting valve types and materials compatible with the medium’s characteristics.

Difficulty in valve operation can result from stuck components, insufficient lubrication, or improper handling. Solutions include enhancing valve lubrication to ensure component flexibility, inspecting and replacing worn or deformed parts, and training operators to ensure they are proficient in the correct valve operation.

Improper valve selection may result in media leakage, operational difficulties, shortened service life, and other issues. Proper selection should consider the characteristics of the medium (such as temperature, pressure, and corrosivity), flow requirements, operating pressure, and temperature range. Valves that are improperly selected may fail to meet production demands and could potentially lead to safety incidents.

Regular valve maintenance is crucial for ensuring normal operation and extending service life. Key maintenance steps include inspecting the valve’s sealing performance, lubrication, component wear, and connection tightness; cleaning impurities and dirt inside the valve; replacing damaged or aged parts; and performing necessary adjustments and calibrations. Regular maintenance helps identify and address issues promptly, preventing potential safety hazards.