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In complex facilities like refineries, thousands of flanges connect extensive piping systems. Effective flange management is essential for preventing leaks and maintaining pressure vessel integrity.

Flange Joint Criticality: Not all flanges are equal. High-pressure, high-temperature, and hazardous service lines require greater attention. Flange failure in these critical areas can lead to severe safety and operational issues.

Best Engineering Practices for Flange Management:

1. Proper Torque and Tension Control: Follow ASME PCC-1guidelines for assembly, using calibrated tools to ensure consistent torque and bolt tension. This prevents misalignment and leakage.

2. High-Integrity Materials: For high-criticality joints, use gaskets and bolts compliant with ASME B16.20 standards to withstand extreme conditions and maintain joint integrity.

3. Training and Competency: Ensure personnel are well-trained in flange assembly and maintenance practices. Understanding and applying standards like ASME PCC-1 is crucial for reducing human errors and improving joint integrity.

Example: In a refinery, a critical flange on a high-pressure line failed due to improper bolt tensioning. Training staff on proper bolting techniques and following ASME standards would have flagged this joint for more rigorous attention, potentially preventing the failure.

Conclusion: Implementing best practices, training, and adhering to relevant standards in flange management can significantly reduce the risk of leaks and enhance overall plant safety.

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