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  1. sirpumpsalot

    Dual seal barrier fluid for hydrofluoric acid environment

    What I am really interested in is what are other people using as a barrier fluid for dual seals in an anhydrous HF environment.
  2. sirpumpsalot

    Dual seal barrier fluid for hydrofluoric acid environment

    Does anyone have a recommendation for a barrier fluid to be used in a dual seal that will be in an anhydrous, gaseous hydrofluoric acid environment? I would like to use Fluorolube, but it causes significant swell in Kalrez orings. The engineer who had this project previous to me tried to use a...
  3. sirpumpsalot

    Acceptable Leakage Rate

    I have a single, John Crane 8B1H seal running carbon vs. TC in a Sihi CEHY pump and the pump is moving 125 refrigerant. Is anyone running a single seal in a flashing service such as this and are you able to get leakage rates of less than 1000ppm?
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