APPLICATION 87 · STORAGE TERMINALS, TANK FARMS & BULK HANDLING

Spheres and pressurised storage vessels

Condition assessment of shells, welds, nozzles, supports and pressure-retaining components under applicable requirements. Within liquid and bulk-material storage and transfer facilities where containment is business-critical, this asset can directly influence containment integrity, corrosion, settlement, transfer reliability and environmental protection. A focused integrity programme should therefore connect the design basis, materials, service history, previous findings and current operating condition, so that inspection effort is directed to credible damage locations and produces information that supports practical maintenance decisions.

Spheres and pressurised storage vessels
Application & Asset Overview

Spheres and pressurised storage vessels

Condition assessment of shells, welds, nozzles, supports and pressure-retaining components under applicable requirements. Within liquid and bulk-material storage and transfer facilities where containment is business-critical, this asset can directly influence containment integrity, corrosion, settlement, transfer reliability and environmental protection. A focused integrity programme should therefore connect the design basis, materials, service history, previous findings and current operating condition, so that inspection effort is directed to credible damage locations and produces information that supports practical maintenance decisions.

Integrity Focus

Principal considerations and IAIS UAE support

Principal integrity considerations

  • General or localised corrosion, erosion and service-specific material degradation.
  • Weld, nozzle or attachment cracking associated with fatigue, thermal cycling or stress concentration.
  • Distortion, support deterioration, lining damage and defects at pressure-boundary transitions.

How IAIS UAE may support

  • Establish a damage-mechanism-based plan covering shells, heads, nozzles, welds, attachments, supports and accessible internals.
  • Use visual, ultrasonic, surface and volumetric examination methods selected for material, geometry and expected damage.
  • Characterise reportable indications and provide data for remaining-life, fitness-for-service or repair-engineering review where required.
Outputs & Requirements

Typical outputs and applicable standards

Typical outputs

Equipment inspection report, thickness grids, weld/NDT records, condition photographs, anomaly classification and action list.

Codes & standards

The activity may be planned and reported against the applicable provisions of API 650, API 620, API 653, API 575, API 651/652, API 579-1/ASME FFS-1, EEMUA 159 and statutory/client requirements. Final references and acceptance criteria remain subject to approved project and statutory requirements.

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