How to Decrease Corrosion in Fire Sprinkler Pipes | Fire Sprinkler System


The NFPA requires a 5 Year Obstruction Test for fire sprinkler systems to maintain the lifesaving equipment. Fire sprinkler pipes require 5 Year Obstruction Test to monitor any corrosion, obstructions, or Microbiologically Influenced Corrosion (MIC) that may occur. There are a few ways to decrease the chances of corrosion compromising a fire sprinkler system.  

Corrosion in a fire sprinkler pipes happens when water and oxygen come in contact. If any part of the dry sprinkler system has residual water in it from a flow test, hydro test or condensation it is vulnerable to corrosion. To prevent this from happening, a Nitrogen Generator can be installed and sprinkler pipes will be filled with nitrogen rather than oxygen. Nitrogen is dryer than oxygen, and therefore, it will help keep the pipes dry.

If Microbiologically Influenced Corrosion (MIC), is found in the water, it is imperative to properly treat the system in order to prevent metal pipes from continually breaking down. MIC are microorganisms that cause metal to breakdown. When this is found in sprinkler pipes, the water should be tested to determine what bacteria is present. Once the bacteria is determined, the water should be treated to eliminate the MIC.

Regular maintenance of your fire sprinkler system is a great way to help prevent corrosion from compromising your system. Our technicians are trained professionals that know what to look for and how to resolve issues. A 5 Year Obstruction test is a preventive maintenance that will help preserve the life of your fire sprinkler system.

To learn more about what a 5 Year Obstruction Test is, please click here.

To learn why a 5 Year Obstruction test is important, please click here.

If you have any questions about the above topic please call 973-560-1600.