Corrosion-causing gauge failures

    Common Failure: Corrosion

    How do I know that my gauge is experiencing corrosion?

    • Pointer is corroded
    • Discolored liquid case fill
    • Build-up in case

    What causes corrosion in my gauge?

    Failure due to corrosion can be caused by several things. When looking at your system, consider the following:

    • Are contaminants getting inside of the case?
    • Is the fill plug missing?
    • Is the case or window cracked?

    Possible Risks

    • Contaminants cause corrosion of the Bourdon tube
    • Contaminant inside the gauge window result in inability to read the gauge or for the gauge to show an inaccurate reading
    • System media will release into the environment resulting I potential injury and lost system media
    currosion3-1

    Gauges can fail due to Corrosion.

    If you notice discolored liquid in the case fill, build-up in the case, or the pointer is corroded, corrosion could be an issue.

     

    Break down this common failure issue:

     

    Causes

    Failure due to corrosion can be caused by several things. When looking at your system, consider the following:

    • Are contaminants getting inside the case?

    • Is the fill plug missing?

    • Is the case or window cracked? 

    Risk

    • Contaminants cause corrosion of the Bourdon tube

    • Contaminant inside the gauge window results in the inability to read the gauge or for the gauge to show an inaccurate reading.

    • System media will be released into the environment, resulting in  potential injury and lost system media

     

    Solution

    Select a gauge with a liquid case fill or with a hermetical seal to keep contaminants out. Use a diaphragm seal solution in a non-316 alloy for increased corrosion resistance. 

     

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