RE: [Piping Design]

From: <Mandal>
Date: Tue Oct 07 2003 - 05:55:00 EDT

Please check if there are break-up flanges in the line. Cement lined pipes normally come with break-up flanges after every installation length (6 to 12 metres). This is definitely not a fool proof method but at least you may ascertain whether the pipe is a lined one (epoxy or cement).

Also you may check for the small instrument tapings. If the pipe is lined, instrument tap-offs would be of minimum 2" to 4" followed by a flange and a bored blind flange (4" x 1/2", for example).

However, the easiest way to know if the pipe is mortar lined is to get hold of a person who has been in your site since installation of this pipe, pay him 100 bucks and gather all information you need.

Cheers,

Pankaj Mandal.
Siemens Power Engineering Pvt. Ltd.
Plot-6A, Sector - 18,
Maruti industrial area,
Gurgaon - 122015.
India.
Ph. - (0091) 124 2347990 extn.1616
Fax - (0091) 124 2347512 - 14
E-Mail - Pankaj.Mandal@siemens.com <mailto:Pankaj.Mandal@siemens.com> .

-----Original Message-----
From: LIEZWSC@adma.ae [mailto:LIEZWSC@adma.ae] Sent: 07 October 2003 15:08
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign]

Steve,

The line is running we cannot drill hole. The line leaked previously many time, but I'm new in the site. Our UT meters cannot detect the interface.

Regards,
Ali

> -----Original Message-----
> From: Steve McKenzie [SMTP:Mechproj@xtra.co.nz]
> Sent: Tuesday, October 07, 2003 1:30 PM
> To: PipingDesign@yahoogroups.com
> Subject: RE: [PipingDesign]
>
> Hi Ali
>
> tried drilling a small hole? Any inspection hatches?
> Some ultrasonic thickness meters may pick up the cement/steel and the
> cement/water interface but it would pay to have a good meter operator.
> Cheers
>
>
> Steve McKenzie
>
> -----Original Message-----
> From: LIEZWSC@adma.ae [mailto:LIEZWSC@adma.ae]
> Sent: Tuesday, October 07, 2003 10:01 PM
> To: PipingDesign@yahoogroups.com
> Subject: [PipingDesign]
>
>
> How can I confirm that the pipe internally has a cement mortar lining,
> suppose no original data is available?
>
> Regards,
> Ali
>
>
>
>
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Information presented on this list is given as helpful advice, nonsense, carefully-considered calulation or any combination of the above. The intent is to spark discussion and encourage knowledge-sharing amongst professionals. If you blow yourself up by doing stuff remotely described by info gleaned from reading this list, you are an idiot.

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Received on Tue Oct 07 05:55:00 2003