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API 653 Storage Tank Repairs & Modifications












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Our Services

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Replacement Tank Bottoms: Replacement slot-through API 653-style storage tank bottom systems with secondary containment, optional cathodic protection and leak detection per API 653.

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Tank Bottom Repairs: Installation of lap patches on tank bottoms and welding of top-side pits re-welding of bottom joint, re-welding of cornerweld or sump welds.

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Annular Bottom Rings: If corrosion is limited to the outer section of the tank bottom, in lieu of an entire bottom replacement, an annular ring can be installed per API 653. 

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Shell Patches or Whole Ring: Tank shell modifications including replacement storage tank shell flush patches and plates with optional 100% x-ray of weld seams per API 653 or entire ring and roof replacements.

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Nozzles & Piping:As part of many storage tank repair projects, inlet, heating and outlet piping and nozzles may need upgraded, modified or replaced. Pipe installation and piping modifications play a crucial role in many projects.

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Diffusers and Vortex Breakers: Storage tank internal inlet diffuser installation or modification as well as swingline upgrades on the inlet;  vortex breakers and settlement troughs for suction nozzles per API 653

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Heating Coils: Internal storage tank heating coil replacement; serpentine coils, bayonet and stand-up heater bundles are commonly replaced per API 653.

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Waterdraws: Storage tank waterdraw fittings and valve replacements as well as internal piping modifications per API 653.

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Level Gages: Replacement and upgrade of Product Level Gages like Varec 2500, Varec 6700, or Shand & Jurs products are all common

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General Repairs: Roof patch installation and Painter's Safety Tie-offs.

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Venting: Tank venting upgrades including standard open-air gooseneck vents, pressure vacuum vents and desiccant air driers are commonly installed per API 653 and API 2000.

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Floating Roof Repairs: Repair and replacement of floating roof seals and pontoon maintenance.

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Structural Modifications: Centerpole and roof rafter replacements. Centerpole wear pad installation per API 653.

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Access Improvements: Storage tank spiral stairway and ladder modifications and additions per API 653 and AWS standards. 

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Ring and Roof: Storage tank top shell course and roof replacements with roof structure modifications or upgrades per API 653.

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Cathodic Protection Systems:  Sacrificial anode or impressed current cathodic protection systems can be part of bottom replacement  upgrades.

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PA DEP Certified Installers:  If you need storage tank repairs done in Pennsylvania that requires Certified Installer Supervision, ITC can help.

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West Virginia Tank Law:  We have helped several clients navigate WV's Storage Tank Laws and interface with WV DEP regulators.