Menu
Search
Filters
Close
Menu

51318-10862-ASSESSING THE IMPACT OF INSULATION CHOICE ON CORROSION IN A HIGH HUMIDITY DUAL TEMPERATURE ENVIRONMENT

Picture for ASSESSING THE IMPACT OF INSULATION CHOICE ON CORROSION IN A HIGH HUMIDITY DUAL TEMPERATURE ENVIRONMENT
Available for download

Details of a second procedure developed by the testing centre INNCOA to assess the performance of several insulation systems with respect to the ingress of water vapour through a damaged section of the covering layer.

Product Number: 51318-10862-SG
Author: Dr. Mark Swift
Publication Date: 2018
Industry: Corrosion Monitoring and Control
$0.00
$20.00
$20.00

The benefits of closed cell, flexible elastomeric foam (FEF) insulation materials have long been appreciated by its users for application in challenging environments, such as marine and offshore. Despite their successful history, it is only recently that efforts have been made to qualify the benefits of FEF systems with respect to mitigating corrosion under insulation (CUI).

The work began in 2014 with an assessment of the long-term performance of damaged insulation systems subjected to a continuous salt water spray environment and temperature conditions conducive to the development and spread of CUI.

This paper describes the details of a second procedure developed by the testing centre INNCOA to assess the performance of several insulation systems with respect to the ingress of water vapour through a damaged section of the covering layer. The insulation systems were subjected to a continuous cycling within the cold/intermediate temperature regime in order to create favourable conditions for water vapour penetration into the insulation system and consequential CUI development.

The results of this evaluation demonstrate that a systems approach to testing better represents real-life conditions for the initiation of CUI caused solely by water vapour ingress. While long term corrosion cannot be prevented, the independent assessment concludes that: ‘Insulation systems operating over a longer period with risk of condensation penetrating the insulation, Flexible Elastomeric Systems are recommended to mitigate corrosion under insulation’.

Key words: Oil & Gas, Corrosion Under Insulation, Flexible Elastomeric Foam, Mitigating Corrosion, Water Vapour Ingress.

The benefits of closed cell, flexible elastomeric foam (FEF) insulation materials have long been appreciated by its users for application in challenging environments, such as marine and offshore. Despite their successful history, it is only recently that efforts have been made to qualify the benefits of FEF systems with respect to mitigating corrosion under insulation (CUI).

The work began in 2014 with an assessment of the long-term performance of damaged insulation systems subjected to a continuous salt water spray environment and temperature conditions conducive to the development and spread of CUI.

This paper describes the details of a second procedure developed by the testing centre INNCOA to assess the performance of several insulation systems with respect to the ingress of water vapour through a damaged section of the covering layer. The insulation systems were subjected to a continuous cycling within the cold/intermediate temperature regime in order to create favourable conditions for water vapour penetration into the insulation system and consequential CUI development.

The results of this evaluation demonstrate that a systems approach to testing better represents real-life conditions for the initiation of CUI caused solely by water vapour ingress. While long term corrosion cannot be prevented, the independent assessment concludes that: ‘Insulation systems operating over a longer period with risk of condensation penetrating the insulation, Flexible Elastomeric Systems are recommended to mitigate corrosion under insulation’.

Key words: Oil & Gas, Corrosion Under Insulation, Flexible Elastomeric Foam, Mitigating Corrosion, Water Vapour Ingress.

Product tags
Also Purchased
Picture for Cyclic CUI Testing of Insulation Materials
Available for download

Cyclic CUI Testing of Insulation Materials

Product Number: 51317--8877-SG
ISBN: 8877 2017 CP
Author: Soeren Rasmussen
Publication Date: 2017
$20.00

Via the testing of six generically different insulation materials, the study has tried to identify factors in an insulation material that are more influential on corrosion rates of carbon steel.

 
Picture for Strategies to Control Corrosion Under Insulation
Available for download

51316-7465-Strategies to Control Corrosion Under Insulation

Product Number: 51316-7465-SG
ISBN: 7465 2016 CP
Author: khalid Al-Tamimi
Publication Date: 2016
$20.00
Picture for Understanding Insulation Chemistry Proven to Inhibit Corrosion Under Insulation (CUI)
Available for download

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.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support