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Recent content by ammoniachick

  1. ammoniachick

    Ammonia PRV coated with green residue after release.

    I have verified there is no brass, copper, or galvanized. Yes the valve is rated for ammonia.
  2. ammoniachick

    Ammonia PRV coated with green residue after release.

    We recently had a small release of ammonia from one of our Hansen Pressure Relief Valves. It released at 160 PSIG instead of 250, off of an Evaporative Condensor. When we took it apart, it was coated in a green powdery residue. I believe this was the cause for the release. But I can not figure...
  3. ammoniachick

    PRV Replacement

    Thank you for all of your posts! All very valuable information!
  4. ammoniachick

    PRV Replacement

    The PRV's are on Ammonia Pressure Vessels. Send the old ones back to the manufacturer and buy and install new ones We are a small company and do not have on site calibration guys.
  5. ammoniachick

    PRV Replacement

    We were told by an out side consultant that we are required to send off our PRV's back to the manufacture as we replace them every five years. I can not find this recommendation/rule in any of the guideline books I have. Is anyone doing this?
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