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  1. PeteBennett

    ANSI Flange Question

    Dear All, Am sure this is a simple question, but I do not work with ANSI equipment very often, I have a specification that is written Class300 B16.5RF 250 - 500 AARH. Can someone please tell me what the AARH stands for? Thanks
  2. PeteBennett

    Stainless Steel Corrosion

    I have a client who is having corrosion problems on a stainless steel heat exchanger skid. At the start the brazed heat exchangers (s/s plates) were literally being eaten away (secondary side). I thought this could be a production fault so replaced the unit with another one. This lasted a...

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