API 650 & 653 Tank Fabrication, Inspection, & Rigging
PSG delivers full-scope API 650 and API 653 tank fabrication, repair, inspection, and heavy-lift rigging. Our certified welders, fitters, and rigging teams execute code-compliant tank construction with precision, safety, and full documentation to meet the demands of industrial, energy, and municipal clients.
Certified Construction, Repairs & Code-Compliant Welding
PSG provides full-service fabrication and welding for new construction, retrofits, and in-service tank repairs. Our teams support:
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API 650 new tank fabrication & erection
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API 653 repairs, alterations & in-service evaluations
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Precision welding of shell courses, nozzles, floors & structural components
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High-spec welds for carbon steel, stainless, and specialty alloys
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Bottom plate setting, grading, leveling & lap-weld installation
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Shell course fit-up, placement, alignment & weld sequencing
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Roof construction: fixed, cone, domed, or floating
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Structural framing, platforms, stair towers & peripheral steel
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Confined space welding and internal component installation
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Documented weld mapping, MTR traceability & QA/QC oversight
Engineered Rigging, Safe Installations & NDE Inspection
We perform:
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API 653 inspections (VT, UT, MT, RT support)
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Shell repair, floor replacement & roof repairs
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Settlement evaluation & foundation repairs
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Structural restoration & reinforcement
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Hydrostatic testing & compliance documentation