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maryam
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Join Date: Dec 2009
Posts: 9

Ring Type Joint (RJT) Flanges

01/05/2010 1:08 AM

EXCEPT HIGH PRESSURE ,WHEN USING RTJ FLANGE IS NECESSARY?
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PWSlack
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#1

Re: RTJ FLANGE

01/05/2010 3:23 AM

Please turn off Caps Lock and re-phrase the question.

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Lahane82
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Join Date: Oct 2008
Location: Gurgaon,India
Posts: 48
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#2

Re: Ring Type Joint (RJT) Flanges

01/05/2010 5:41 PM

hello,

It is not just pressure which decides the use of RTJ flanges but rating of pipeline .Pipeline rating is decided by flange rating .Flange rating is decided based on Design pressure,Design Temperature(not maximum operating pressure or temperature) and material using ASME B 16.5,upto 24" flange size and ASME B 16.47 series A & series B from 26" to 60".

It is thumb rule that RTJ flange are used for-

Process piping-Class 900 ,Class 1500, Class2500.

Utility piping -Class 1500 ,Class 2500.
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