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  1. AllenCasteel

    H2SO4 tank nozzle failure

    M J Cronin, Where can I purchase a copy of NACE RP-0294? I searched their web site and can't find it anywhere. Do I have to be a member to buy? We do not have an internal dip tube on the fill pipe. The tank is filled from the bottom which serves the same intent. I do not like...
  2. AllenCasteel

    H2SO4 tank nozzle failure

    Thanks for all the replies. The information about the acceptable flow velocities for different materials of construction is very useful. I think we solved our problem. It looks like a downstream check valve was allowing water to weep into the acid piping while the pump was shut off. The...
  3. AllenCasteel

    H2SO4 tank nozzle failure

    I can e-mail a pic of the failed nozzle. Don't know how to post one.
  4. AllenCasteel

    H2SO4 tank nozzle failure

    We have a 10,000 gal carbon steel tank with desiccant dryer for 98% sulfuric acid. The tank is approx. 10 years old and shows no sign of significant corrosion or erosion. However, the outlet nozzles to our pumps have a very high failure rate. 2 months ago one of the nozzles failed. It had a...

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