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  1. #1
    Join Date
    Mar 2006
    Location
    Norfolk
    Posts
    160
    Rep Power
    19

    O Ring on Stal comp



    Hi Guys

    I am replacing a shaft seal set on a Stal comp with a 75 hp Storch motor running on NH3.

    In the shaft seal set I have two O rings the same size ( only one required) One of the O rings is marked "FPM".

    I believe that this "FPM" indicated the type of refrigerant that it is sutibale for - though I am not 100% certain.

    Can anyone give guidance as to which one to use on NH3.

    Thanks.



  2. #2
    Join Date
    Mar 2006
    Location
    Norfolk
    Posts
    160
    Rep Power
    19

    Re: O Ring on Stal comp

    I will answer my own question so that the info is here if required in the future.

    The FPM O rings are for later applications i.e. heat pumps etc.

    Paula

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