CASE STUDY: Corrosion in Metal Work

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Coltraco manufacture Ultrasonics That Work

CASE STUDY: Corrosion in Metal Work

WHO? Vales Point Power Station

WHERE? Delta, Australia. The coal fired power station is at the southern end of lake Macquarie. This power station was built in the 1960’s as a four-unit station, but now operates two 660 MW generating units. The power station is owned and operated by Power International, with the capacity of around 1,320 megawatts, providing 24 hours of around the clock electricity.

WHAT? Corrosion in power plants leads to costly repairs, prolonged maintenance, material losses, poor performance and, if left untreated, failure. In power plants, corrosion is the primary factor leading to costly and critical downtimes. The water-steam circuits in fossil and nuclear power plants are inherently prone to corrosion, as metal components are constantly in contact with water. When corrosion affects systems carrying steam or hot water—such as pipes—material or welds may fail, causing bodily injury or death. Water, steel and dissolved oxygen within boiler units causes boiler tubes to oxidize and corrode. The corrosion forms grooves within the tubes that lead to cracks and boiler failures. Corrosion can account for up to 75 percent of a plant’s arrest time during maintenance and up to 54 percent of production costs.

HOW? To protect against the threat of corrosion, Vales Point Power Station bought a Portagauge® for testing normal structure and stainless steel, so that they could monitor corrosion rates. The Portagauge® 3 is a single-echo portable ultrasonic thickness gauge. The quick, simple and hardy Portagauge® 3 allows accuracy of ±0.1mm even on corroded, challenging and some plastic surfaces. With a 50 hour battery life, measuring thickness ranges between 1.5mm to 99.9mm and a variety of verified testing materials such as steel, quartz and glass PVC, the Portagauge® 3 provides the great amount versatility needed to suit a diversity of safety needs. The handheld highly dependable unit is ideal for a wide range of industrial applications such as fire cylinders, bulk heads, pipework, chemical equipment and oil storage tanks.

 

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Integrity and Science Key to Our Culture of Performance

Dear Coltraco Customers, Strategic Partners and Distributors,

Integrity is our defining value. Performance is its consequence. We understand that our customers have choices, and how we perform determines whether customers choose us. Coltraco’s Code of Ethics does not merely require compliance with laws. It embodies a Commitment to positive behaviours that build trust, promote respect, operate with distinction, with courtesy and global levels of performance, demonstrating our integrity and delivering customer performance.

We honour our commitments, communicate transparently, and act with honour. Ethics are the foundation of our performance culture and our science-based approach. We lead in specific technologies delivering the watertight integrity monitoring of marine structures and the monitoring of fixed liquefied gaseous fire extinguishing systems and the room integrity of protected space to ensure agent hold-times post-installation. We show this by our understanding of the science in them and the mathematics that explain them.

I would like to thank you for your business and for the relationships with our Customers, Strategic Partners, Distributors and ODAs who we value so highly.

My kindest regards,
Carl

Carl Stephen Patrick Hunter BA(Dunelm) Hon DSc FRINA FIMarEST MRAeS
CEO & Managing Director
Coltraco Ultrasonics Limited
46-47 Mount Street, Mayfair, London W1K 2SA
United Kingdom

Tel:  +44 20 7629 8475
Fax: +44 20 7629 8477

Call Now : +44 207 629 8475

 

References in PDF Format

 

Underwriters LaboratoriesUnderwriters Laboratories

 

Reference Alpha Fire UK Portalevel MAX Sept 2012

Reference Portascanner-II CSD MOD Albion and Bulwark

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