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The issue of corrosion of flange fittings is indeed an important aspect that needs attention and treatment, especially in the industrial and infrastructure sectors. The information you mentioned covers some key aspects. Here are some suggestions and additional information:
1. Regular Inspection and Maintenance: Regular inspection of flange fittings and surrounding environmental conditions is key to preventing corrosion problems. This includes checking factors such as humidity, temperature, presence of chemicals, and more. Regular maintenance can detect and treat potential corrosion problems early, reducing repair costs and the risk of process disruption.
2. Use corrosion-resistant materials: When selecting flange pipe fitting materials, consider using corrosion-resistant materials, such as stainless steel, nickel alloy, etc. These materials have a better performance against some forms of corrosion and can extend the service life of flange fittings.
3. Electrochemical corrosion protection: For some specific flange pipe fittings, especially buried pipelines, consider using electrochemical corrosion protection methods, such as cathodic protection. This can help reduce the rate of electrochemical corrosion of metals.
4. Appropriate Coatings and Linings: Choosing the appropriate coating or lining for flange fittings is also an effective method of corrosion protection. This provides an extra layer of protection, either externally or internally, to prevent corrosion from occurring.
5. Monitoring and recording: Establish an effective monitoring system to record the corrosion of flange fittings. This helps predict potential problems and take appropriate action. Modern monitoring technologies, such as non-destructive testing, remote sensing monitoring, etc., can help improve the accuracy and efficiency of monitoring.
6. Training and Awareness: It is important to train operating personnel to be aware of the risks of flange fitting corrosion and how to properly operate and maintain piping systems. Reasonable operation by operators can reduce the risk of corrosion of flange fittings.
By taking comprehensive preventive and maintenance measures, problems caused by corrosion of flange fittings can be significantly reduced and the reliability and safety of the facility improved.