1. Safe operation: Before maintenance, the upstream and downstream valves must be closed and the medium drained to ensure that the system is free of pressure. If the medium is flammable, explosive or toxic, additional safety protection measures must be taken.
2. Component Matching: When replacing seals or key components, products of the same specifications and materials as the original ones must be selected to avoid leakage or jamming due to incompatibility.
3. Professional Training: Maintenance personnel must undergo professional training to be familiar with the structure, principle and maintenance process of check valves, and avoid damaging the valves due to improper operation.
4. Preventive maintenance: Develop a preventive maintenance plan based on the operational characteristics of the system, regularly inspect and replace vulnerable parts, and extend the service life of valves.
