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Nitrogen Solutions for Corrosion

Monday, April 03, 2017
Ahern Fire Sprinkler

Corrosion in fire sprinkler systems has been an issue for as long as systems have been installed. When left unchecked, corrosion can lead to water damage, high repair costs, and reduced system lifespan. The by-products of corrosion can accumulate in the system over time, leading to clogged piping and failure of the fire sprinkler system to operate properly during a fire event.

Over the years there have been several attempts to address corrosion and plugged piping in fire sprinkler systems. One of the most promising solutions is nitrogen inerting. Corrosion is a chemical reaction that occurs between oxygen and the iron in the piping. Leaks caused by corrosion will occur at the highest points of the system, near the air/water interface adjacent to trapped pockets of air. By eliminating the oxygen from the equation, it is possible to stop the corrosion process, stop costly repairs, and extend the life of your sprinkler system. 

Ahern, a technical leader in the fire protection industry, partnered with Engineered Corrosion Solutions to provide corrosion control systems that offer distinct advantages over simply purchasing equipment from a product manufacturer. Some of the benefits of this partnership include:

  • Patented “fill and purge” breathing for complete gas exchange for the most effective method to completely remove oxygen
  • The simplest, safest and most efficient means for stopping oxygen corrosion in wet pipe systems removing the need for expensive and time-consuming water treatment processes
  • FM Approved vent with redundant design does not require plumbing to drain
  • Extensive field experience in deploying WPNI technology and eliminating corrosion

Ahern’s Minneapolis office completed an installation of a nitrogen inerting system at the France 2 building to provide a long term solution for the property owner.   

After installation of the nitrogen system, including air vents to purge oxygen was complete, our service technicians proceeded with start-up and testing of the system, lowering the oxygen level to a point where corrosion ceases. To date, the systems have been in service without developing any new leaks. The owner’s investment corrected the underlying issues contributing to corrosion. As a result the fire sprinkler system should now last as long as the structure.

At Ahern, we strive to understand the root causes of corrosion in fire sprinkler systems and to provide products and services that can bring about a reduction in those risks.

All projects have unique requirements and customized solutions to challenges presented. The nitrogen technology’s ability to have an immediate impact on resolution proved to be the proper solution for the project, while allowing for a lower total cost of ownership to the end user.

For more information, contact Ahern today!

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