Category: Press Release

Diesel engine turbochargers are an engineering masterpiece. They promote fuel and engine efficiency by recycling exhaust for more power in smaller engines. Unfortunately, most (if not all) manufacturers are missing out on one of the easiest solutions for inhibiting corrosion inside the intricate twists and turns of a turbocharger. For them, Vapor phase Corrosion Inhibitors hold an untapped solution just waiting to be unleashed.

The Power of Water-Based Vapor phase Corrosion Inhibitors
Cortec® VpCI®-337 is a ready-to-use waterborne Vapor phase Corrosion Inhibitor for the protection of metals in enclosed void spaces. Because of its vapor-phase action, VpCI®-337 does not need to be directly applied to all surfaces inside the void to achieve full protection. Rather, when fogged into a space, these corrosion inhibiting vapors diffuse throughout the enclosure, adsorbing on metal surfaces to form a molecular protective layer that replenishes itself as long as the corrosion inhibitors remain trapped within the void. This mechanism is ideal for intricate, hard-to-reach surfaces like those within a diesel engine turbocharger, making it possible to apply comprehensive protection within seconds.

Solving an Eight Month Challenge
One maker of diesel engine turbochargers found this to be the case when watching a demo of VpCI®-337. The company had struggled for months to find a way to prevent corrosion inside their turbochargers. At the time, they were using a thick oil-based vapor corrosion inhibitor that they could not even get all the way through the system, despite using everything from vacuums to fans to try to pull it through. Instead of protecting the turbocharger, the oil clogged it.

Eight months into the effort, the workers finally decided to try fogging VpCI®-337 into the turbocharger. Within seconds, workers could see the fogging fluid coming out of the other openings of the system, confirming that it had worked its way through. All that needed to be done was to cap the ends, and the turbocharger would be protected for several weeks to a year while sitting on a shelf or shipping out to another part of the world. Compared to the oil-based corrosion inhibitor, which would have created a big cloud of smoke in order to be burned out of the system, removal of VpCI®-337 before startup promised to be much easier-if needed at all!

Request a VpCI® Turbocharger Demo
Anyone who makes or distributes diesel engines with turbochargers at risk for internal corrosion during manufacturing, shipping, or storage should seriously investigate the use of VpCI®-337 versus more cumbersome oil-based products. A similar option is CorroLogic® Fogging Fluid VpCI®-339, a 100% vapor-phase product that offers a higher concentration of Vapor phase Corrosion Inhibitors and faster fogging. Whatever your preference, contact Cortec® today to tap into these exciting corrosion solutions for diesel engine turbochargers and request a demo today: https://www.cortecvci.com/contact-us/

Keywords: corrosion solution, diesel engine turbochargers, corrosion on turbochargers, corrosion solution for turbochargers, corrosion inhibitors, Cortec, VpCI, CorroLogic, corrosion during manufacturing, corrosion during shipping, corrosion during storage

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Our ever-increasing reliance on technology means that the construction of data centers continues to boom, with market growth expected to continue in the foreseeable future. Growing right along with that is the need for cooling systems to dissipate the heat generated by thousands of servers processing data 24 hours a day. But what happens in the interim between cooling system installation and data center startup? The following two corrosion inhibiting technologies are great strategies for keeping cooling water systems in like-new, corrosion-free condition during hydrotesting and dry layup.

Hydrotesting with VpCI®-649
Cooling water systems and any piping network designed to handle fluids must be hydrotested to check for leaks and pressure durability before they are ever used. Unfortunately, this critical step also leaves behind residual moisture that can incite corrosion and related problems before operation ever starts. This can lead to clogging in pipes and chillers at startup or even deterioration and leakage of the system wall if left undetected. An easy solution is to add VpCI®-649 to the hydrotest water. VpCI®-649 combines contact and Vapor phase Corrosion Inhibitors in a liquid formulation that does not contain nitrites, phosphates, or chromates. Treated hydrotest water can be captured and reused for multiple hydrotests on different pieces of equipment. Those also facing molybdate restrictions can opt for VpCI®-649 MF, which uses a PTSA tracer (in place of molybdate) for easy detection of corrosion inhibitor concentration. As VpCI®-649 circulates through the system in the hydrotest water, it leaves behind a corrosion inhibiting film that continues to protect the piping after the system is drained. No further removal is needed before commissioning. 

Dry Layup of Chiller Bundles and Other Isolated Chambers
After the chiller has been installed but prior to piping completion, larger, isolated void areas like the chiller bundle should undergo dry layup with the Cooling Tower Frog®. This Cortec® water treatment “animal” consists of a water soluble bag containing Vapor phase Corrosion Inhibitor powder. The product is very easy to apply, with little or no surface preparation required. Once the bags are placed in the end of the chiller bundle or other enclosed area, the film should be slit open to release the corrosion inhibiting vapors before closing all openings to the void area. As time passes, these Vapor phase Corrosion Inhibitors diffuse throughout the enclosed space, adsorbing on metal surfaces in the form of a protective molecular layer that inhibits the corrosion reaction, even in the presence of moisture. To make life even better for the commissioning crew, there is no need to remove the Cooling Tower Frog® at the end of the layup period. When the chiller is turned on and cooling water is flushed through the system, the Cooling Tower Frog® will simply dissolve in the makeup water.

Faster and Better Data Center Construction
Design and construction of data centers is getting easier and faster as builders learn from past experiences and create new blueprints to follow. The use of VpCI®-649 and the Cooling Tower Frog® for corrosion protection in cooling systems is just one more insight to make the process more efficient than ever by preserving chill water systems in their original state and eliminating unnecessary corrosion complications at startup. Contact Cortec® to learn more about this groundbreaking approach to a critical part of data center construction: https://www.cortecwatertreatment.com/contact-us/

Keywords: data center construction, data center cooling systems, corrosion inhibiting technologies, hydrotesting, VpCI-649, cooling water systems, dry layup of chiller bundles, Cooling Tower Frog, Vapor phase Corrosion Inhibitors, molybdate restrictions

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