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  1. YHAMDI

    Witness of Pressure Relief Valves Testing

    Hi All, During our maintenace activity of the Pressure Relief Valves,does the inspector or the witnesser of the test need to be certified to do that activity or the awarness of PRV repair and test is adqute for that? Also what is the certificate if there is? Thanks for the usual support...
  2. YHAMDI

    Bellows in Safety relief valve (Balanced Type)

    Sorry I've forgot to mention that the thread has an attachment, please check it out. Yahya, Mech. Eng.
  3. YHAMDI

    Bellows in Safety relief valve (Balanced Type)

    Hi All, Does the bellows in Safety relief valve (Balanced Type) count while testing ? Meaning to say : we know that Force(spring) is opposing Pressure(system) , but shell we consider Force of(Bellows compression) is an addition to spring force or to the system pressure or it has no affect...

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