ANSI Flange Question
ANSI Flange Question
(OP)
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
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





RE: ANSI Flange Question
RE: ANSI Flange Question
The flange spec Class 300 B16.5RF 250-500 AARH is telling you 300# flange class, Raised face with the spirals on the face having a finish of 250-500 AARH Here is a link to some pictures showing the different finishes. http:/
RE: ANSI Flange Question
Its a useful website StoneCold