Re: Glass Lined Pipe

From: <Geoff>
Date: Mon Jun 17 2002 - 01:40:00 EDT

Paul,

The pipe system was very intricate as it was replacing an existing system in an old sewage treatment plant that was very congested. The plant had to be kept running. We also had gravity lines so could not re route that easily. The building was built using reinforced concrete so each penetration was a nightmare. Monorails and overhead cranes added to the complexity.

No we didnt groove the Victaulic coupling. Victaulic make a coupling with hardened teeth that bite into the outside of the pipe. It saves double handling the pipe and the likely corrosion point on the pipe. Sewage is one of the most corrosive fluids known to man especially if there is H2S about.

Some of our STPs are carved into sandstone headlands and are very congested.

Piping in a refinery to ANSI B31.3 or a mineral propcessing plant is a dream compared to this industry.

Geoff
--- Paul Bowers <pbowers@pipingdesign.com> wrote:
> I'm curious as to what is needed; one line for a specific product or a
> piping network of glass-lined pipe. This problem sounds a lot like the
> issues encountered with vacuum-jacketed piping (as used for liquid hydrogen
> in my experience). With VJ, you can build everything up to the last spool
> piece and then custom fab the final bit.
>
> Did you cut the required groove for Victaulic into a glass-lined pipe? I'm
> afraid my knowledge of glass lining and Victaulic is not the best.
>
> Paul
>
>
> ----- Original Message -----
> From: "Geoff Stone DD&D Australia" <blenrayaust@yahoo.co.uk>
> To: <PipingDesign@yahoogroups.com>
> Sent: Sunday, June 16, 2002 10:00 PM
> Subject: RE: [PipingDesign] Glass Lined Pipe
>
>
>
> > I can remember Greenline wanting everything flanged but in the end it was
> too
> > time consuming measuring and getting specials flown out. So we attacked it
> by
> > having plan ended pipe and using the Victaulic joint that grips the
> outside of
> > the pipe. Also the gasket used was their firesafe type, that filled in the
> gap
> > between the pipe ends, to limit corrosion at that point.
>
>
>
>
>
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---

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