ECT BASED
Pulsed Eddy Current Array (PECA)
Pulse Eddy Current (PEC) is an electromagnetic inspection technique used to detect wall loss on ferromagnetic structures such as carbon steel & cast iron, without removing the insulation. It provides a relative volumetric measurement converted into an averaged thickness measurement based on the calibration area. This tool was developed for the detection of corrosion under insulation (CUI) & fireproofing (CUF).
This is an excellent technique to be applied on objects that are insulated & also can be applied on objects that are difficult or extreme cost accessible.
ADVANTAGES OF
PECA
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Can measure remaining thickness of a component with a lift-off
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Insulation with weather jacket (aluminium, stainless steel, galvanized steel)
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Concrete / silicate
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Marine growth
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No surface preparation needed
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Coating (paint) / insulation / passive fire protection removal not required
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No interference with production (can applied during in-service plant operation)
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Accessibility issues are minimized as it can be used via rope access operators
USAGE OF
CUI & CUF
Petrochemical Plants & Refineries
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Sphere legs
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Insulated cryogenic tanks & piping
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Tank floors with fiberglass coatings
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Pressure vessels
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Skirts
Power Generation
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Feedwater & condensate piping
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Drain piping
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Coal feed piping
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Feedwater heater shells
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Re-circulating piping
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HRSG finned tubing
Marine Application
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Offshore platform legs
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Ship hulls
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Seawall bulkheads
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Bridge pier sheet piling
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Fireproofed structural beams
VIDEO OF
