Re: [MW:33031] channels and bonnets with six or more tube passes

Please look into the attachment and advise that pwht is applicable for these channels as per API 660 clause 9.6.9 (a) or not?
Both channels are belongs to one HE.
Regards,
Manohar.

ClauseFrom: Raghuram Bathula <raghurambathula@gmail.com>
Sent: Tue, 05 Apr 2022 15:37:49
To: Materials-Welding <materials-welding@googlegroups.com>
Subject: Re: [MW:33030] channels and bonnets with six or more tube passes
 

it is from one end of HE to another end is consider as 1 pass (not individual channel)

 

On Tue, 5 Apr 2022 at 15:22, 'manohar matcha' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Group Members,

Please share your opinion/interpretation on API 660 Clause 9.6.9 (a)


 
Tube passes to be considered for individual channel or both channels (if Exchanger is having 2 channels)?
 
in other words:
Individual Channel passes to be considered or cumulative passes for both channels to be considered..?

Regards,
Manohar.

 

 

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