[MW:770] RE: 763] Re: AET type exchanger test ring

Thanks for your inputs Mr Tagore and Mr Alireza.

 

Thanks and regards,

 

Jignesh

Kuwait

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of alireza alavi
Sent: Wednesday, May 07, 2008 5:36 PM
To: materials-welding@googlegroups.com
Cc: nacemail@gmail.com
Subject: [MW:763] Re: AET type exchanger test ring

 

Dear Jignesh ,

 

hope the attached file help you

 

good luck

Alireza

Jignesh Patel <nacemail@gmail.com> wrote:

Dear Friends,

 

I have seen few heat exchangers on this forum. I am an end user of heat exchangers in refinery. My query is related to test rings of exchangers.

 

One of our new units has AET type exchangers [pull through type]. These exchangers have a floating tubesheet [FTS] with bolt holes and the floating head cover [FHC] is directly bolted to the floating tubesheet. The problem with this is that we canâEURO(tm)t carry out shell test using a conventional test ring due to several bolt holes on the floating tubesheet. Conventional AES exchangers have backing rings pressing the FHC against the FTS.

 

I checked TEMA website and it says, test rings for such exchangers are possible and the bolt holes in the tubesheet need to be temporarily plugged. It also says refer to 4.13 (3) of TEMA. Unfortunately we donâEURO(tm)t have the latest edition of TEMA.

 

Does any one have experience with test rings [for shell test] for AET type exchangers? I would appreciate a generic drawing / scheme showing how to carry  out shell test of such exchangers.

 

Thanks in advance.

 

Thanks and regards,

 

Jignesh

Kuwait

 

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