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51314-4079-Solution to Corrosion Under Insulation (CUI) with Three Layered CUI Control and CUI Warning Systems

Picture for Solution to Corrosion Under Insulation (CUI) with Three Layered CUI Control and CUI Warning Systems
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Product Number: 51314-4079-SG
ISBN: 4079 2014 CP
Author: Miki Funahashi
Publication Date: 2014
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CUI is the most expensive problem in the corrosion history due to their highly corrosive conditions and the limited visual access by thermal jackets. In general CUI is caused by water leakages from the thermal jackets.  Visual inspections of steel pipes and tanks by removing the thermal jackets are most reliable way to find CUI locations at present. However the cost of the inspection is so high so that only limited areas are selected. In cyclic temperature pipes the source of water is condensation so that the entire pipe and tank surfaces are subject to CUI regardless of water leakages from the outside environment. Typical high temperature coatings or thermal sprayed aluminum (TSA) have been used to control CUI. In addition some CUI monitors methods were developed in the past. The cost-effective three layered CUI protection system was developed by combining galvanic CP and barrier protection.In addition the CUI locations caused by water leakages are not predictable and the number of CUI locations is massive for most petrochemical plants and refineries. Therefore CUI warning System was developed to eliminate the locations which are not developing CUI.This paper discusses how to protect CUI using the three layered system and detect the CUI locations remotely. 
CUI is the most expensive problem in the corrosion history due to their highly corrosive conditions and the limited visual access by thermal jackets. In general CUI is caused by water leakages from the thermal jackets.  Visual inspections of steel pipes and tanks by removing the thermal jackets are most reliable way to find CUI locations at present. However the cost of the inspection is so high so that only limited areas are selected. In cyclic temperature pipes the source of water is condensation so that the entire pipe and tank surfaces are subject to CUI regardless of water leakages from the outside environment. Typical high temperature coatings or thermal sprayed aluminum (TSA) have been used to control CUI. In addition some CUI monitors methods were developed in the past. The cost-effective three layered CUI protection system was developed by combining galvanic CP and barrier protection.In addition the CUI locations caused by water leakages are not predictable and the number of CUI locations is massive for most petrochemical plants and refineries. Therefore CUI warning System was developed to eliminate the locations which are not developing CUI.This paper discusses how to protect CUI using the three layered system and detect the CUI locations remotely. 
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Picture for CUI Mechanism and Prevention
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51315-5757-CUI Mechanism and Prevention

Product Number: 51315-5757-SG
ISBN: 5757 2015 CP
Author: Hiroyasu Matsuda
Publication Date: 2015
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Picture for Performance of Next Generation CUI Mitigation Systems
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Performance of Next Generation CUI Mitigation Systems

Product Number: 51317--9331-SG
ISBN: 9331 2017 CP
Author: Neil Wilds
Publication Date: 2017
$20.00

This paper will detail the performance differences between 1st generation and the next generation of ‘Multi Polymeric Inorganic Copolymer ‘and the proven benefits observed by the end user in the field but will also look at the alternatives to traditional insulation in the fight against corrosion under insulation (CUI).

 
Picture for Understanding Insulation Chemistry Proven to Inhibit Corrosion Under Insulation (CUI)
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Understanding Insulation Chemistry Proven to Inhibit Corrosion Under Insulation (CUI)

Product Number: 51317--8876-SG
ISBN: 8876 2017 CP
Author: David Shong
Publication Date: 2017
$20.00

Since 2002, a corrosion inhibiting chemistry package has been an integral part of two specific industrial insulations. This paper explains, at a molecular level, how this package engages a two-pronged defense (physical coating and pH buffering) against CUI.
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