Rerating of pipe

[harith07]

Hi,
I have an existing pipe which has a design pressure of 6610kpa. A tie-in from a new equipment is to be done via a new pipe to this existing pipe. Like to know where I can find a guideline on the calcs.
Thanks.

 

[harith07]

Sorry, I forgot to mention that I would like to do a rerating calcs for the existing pipe to see if it meets the new design pressure for the new equipment, 7240kpa.
Thanks.

 

[BigInch]

You will find a description of the basic required method in whatever design code that applies to your piping system design.

http://virtualpipeline.spaces.msn.com

 

[SeanB]

You need a flange rating table and you need the original hydrotest pressure of the pipe.