RE: Use of ice to plug a pipe

From: <Jim>
Date: Thu Jul 29 2004 - 12:47:00 EDT

Good luck! If this were in the US I don't think ice would meet the Section III requirements for emergency feedwater. The 50.59 would be a nightmare. If you have Tech Spec time it might be best to declare the system inop and perform the mod in the allotted time. Also, when welding, the freeze seal should be far enough away so that weld temperature is maintained. I had a freeze seal procedure for a nuclear plant. I will look for it if you need it. Just let me know.

Jim

-----Original Message-----
From: James, Barbara [mailto:bjames@mitsuibabcock.com] Sent: Thursday, July 29, 2004 11:12 AM
To: 'PipingDesign@yahoogroups.com'
Subject: RE: [PipingDesign] Use of ice to plug a pipe

Hi Paul,

Thanks for the rapid response, it is just what I needed. I had never heard of this procedure, I must lead a sheltered life!

The back-up emergency back-up feed system is supposed to be able to operate during an earthquake, so now I just have to work out how to seismically qualify some firehoses and a block of ice...

Barbara

> -----Original Message-----
> From: Paul Bowers [mailto:pbowers@pipingdesign.com]
> Sent: 29 July 2004 14:42
> To: PipingDesign@yahoogroups.com
> Subject: Re: [PipingDesign] Use of ice to plug a pipe
>
>
> It's a well-known procedure:
>

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