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  • Users: Gungadin
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  1. Gungadin

    Recommended Coating for Steel Shafts in Chlorinated Water?

    Howdy folks, I have a project at a municipal water filtration plant (I'm one of the public works engineers) - the flocculator facility makes use of submerged steel shafts (4-7/16" dia.). The water is slightly chlorinated, and comes from a reservoir/lake. I'm quite ignorant when it comes to...
  2. Gungadin

    Electropolish vs. Pickle and Passivate?

    Howdy folks - I'm hoping to get a basic understanding of the difference between electropolishing and pickling/passivating. I have a number of SS louvres (4' x 1'6", 316 SS) which are installed in a water tunnel portal building, and exposed to high humidity from slightly chlorinated water...
  3. Gungadin

    Submerged HDPE water pipe costs?

    Hi, I need to come up with some budget level unit costs for installing a 24-inch hdpe in a lake - depth would be up to about 60 feet, length would be on the order of 1,500 feet - anyone been through this sort of project? Thanks!
  4. Gungadin

    Pros/Cons of Hydrostatic Dished Head Steel Pipe Test?

    Hi - I'm hoping to get some input on the pros cons of hydrostatic dished head testing for steel pipelines. Thanks!
  5. Gungadin

    Corrosion of SS fixtures in water valve house

    Hi - we operate a number of valve houses for a large water transmission pipe system. Upgrades at one valve house included fixtures (wall vents, louvers, doors, railings, electrical enclosures) constructed of 316 stainless steel. All of these fixtures are showing some degree of corrosion (some...

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