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...
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?