Umm Wu’al Phosphate Tanks


Construction of nineteen (19) API-650 tanks for Umm Wu’al Phosphate Project for Ma’aden, for the storage of various products and process mediums – Brine, Cooling Water, Liquid Sulfur, Concentrated PPA, Sulphuric Acid, etc.



Tanks constructed ranged from 9.10 m diameter to 35.00 m diameter, from simply-supported cone roof, aluminum/carbon steel dome roof to cone roof with columns and rafters. Special provisions such as steam coils are provided for sulfur tanks. Design engineering used commercial software and in-house validated worksheets. Tanks provided for this project include:

  • 1 No. Brine Collection Tank
  • 3 Nos. Closed Loop Cooling Water Expansion Tank for PAP
  • 1 No. Closed Loop Cooling Water Expansion Tank Other Than PAP
  • 8 Nos. Sulphuric Acid Storage Tank
  • 3 Nos. Concentrated PPA Storage Tank
  • 3 Nos. Liquid Sulphur Storage Tank

Engineering Services provided include, but not limited to:

  • General Arrangement & Nozzle/Appurtenances Layout
  • Complete Detailed Design and Shop Fabrication Drawings
  • Data Sheets
  • Mechanical Strength Calculations
  • Foundation Loadings
  • Anchorage and Foundation Design
  • Nozzle Loading Calculations
  • Finite Element Analysis (FEA)/STAAD Calculations
  • Wind Load, Seismic and External Loading Calculations
  • As-built drawings revved-up to as-constructed condition.
  • Field engineering assistance during construction and commissioning.
  • Vendor, client, enduser and other third party coordination.


Client: MA’ADEN
Location: Umm Wu’al
Project Type: Tank Engineering
Year Completed: 2016
Service Category: Industrial – Tanks and Vessels
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