The current research regarding corrosion in fire sprinkler systems suggests that the primary cause for corrosion related failures is dissolved oxygen in the water. Although microbiologically influenced corrosion (MIC) can be a contributing factor, there is strong evidence which indicates that MIC accounts for less than 15% of the corrosion related failures. Oxygen corrosion accounts for the vast majority of corrosion related pipe failures.
In other industries it is common to use water dispersible “filming amine” type chemical corrosion inhibitors to control oxygen corrosion in fresh water flowing environments. This approach achieves corrosion control through continuous low dosage injection of the inhibitor into the flowing stream of water. A thin inhibitor film protects the metal surface by forming a barrier which inhibits the action of oxygen on the metal.
The standard list of chemical corrosion inhibitors that provide excellent corrosion control in fresh water flowing environments have a much more difficult task in controlling corrosion in stagnant water based fire sprinkler systems and chemical suppliers are currently not required to prove that their corrosion inhibitor actually works in fire sprinkler systems. Proper dosage, even distribution, penetration beneath solids, and dilution from flow testing are all major concerns with applying chemical corrosion inhibitors to fire sprinkler systems.
There is currently no industry standard for performance, allowable toxicity, or compatibility with system components of chemical corrosion inhibitors used in fire sprinkler systems so there is no way to ensure that the chemical treatment is not doing more harm than good.
In other industries it is common to use water dispersible “filming amine” type chemical corrosion inhibitors to control oxygen corrosion in fresh water flowing environments. This approach achieves corrosion control through continuous low dosage injection of the inhibitor into the flowing stream of water. A thin inhibitor film protects the metal surface by forming a barrier which inhibits the action of oxygen on the metal.
The standard list of chemical corrosion inhibitors that provide excellent corrosion control in fresh water flowing environments have a much more difficult task in controlling corrosion in stagnant water based fire sprinkler systems and chemical suppliers are currently not required to prove that their corrosion inhibitor actually works in fire sprinkler systems. Proper dosage, even distribution, penetration beneath solids, and dilution from flow testing are all major concerns with applying chemical corrosion inhibitors to fire sprinkler systems.
There is currently no industry standard for performance, allowable toxicity, or compatibility with system components of chemical corrosion inhibitors used in fire sprinkler systems so there is no way to ensure that the chemical treatment is not doing more harm than good.
| AQUAGUARD 110 - Corrosion Inhibitor for Fire Water Systems | |
Corrosion in fire water systems can eventually result in the need to replace system piping and components. It may also result in a system failure when you need it most! AQUAGUARD 110 has been specially formulated for fire water systems to prevent and reduce corrosion and its detrimental effects on system piping and components. AQUAGUARD 110 is a multi-functional corrosion inhibitor which acts in two ways to prevent corrosion. Its primary method of protection is through the formation of a self-healing thin film protective barrier on the surface of the metal. A secondary corrosion control mechanism occurs as a result of the increase of pH through the addition of AQUAGUARD 110 to the system. AQUAGUARD 110 is safe to use, easy to handle, store and apply. In fact, the actives in AQUAGUARD 110 are commonly used throughout North America to inhibit corrosion in water systems. These actives have been proven to be one of the most effective ways of controlling corrosion in water piping. Guardian Chemicals Inc.155-55202 SH 825Sturgeon Industrial Park Sturgeon County, AB T8L 5C1 Phone: (780) 998-3771 Toll Free: (800) 661-6544 Fax: (780) 992-1185 Email:info@guardianchem.ca | |