Hi,
I once had a DN900 FRP pipe buried 8m deep. The trench was benched in steps of
1m wide by 1.5m deep.The line was being backfilled when a "galah" dropped a
piece of equipment into the trench. It hit the FRP and it crazed like mad. The
client Sydney Water wouldnt accept any repair procedure. He said he paid for new
pipe so thats what he wanted. We had to excavate the trench to pull sufficient
pipe out to get the defective length out.
From then I have avoided FRP like the plague. Never put something in the ground
you cant fix to the satisfaction of the customer!!!!!!!
tomcruz55 <tomcruz55@yahoo.com> wrote:
And when you got a leak/break on the main header (aboveground or
underground), you can forget about using Belzona or TDW.
- In PipingDesign@yahoogroups.com, Geoff Stone DD&D Australia
<blenrayaust@y...> wrote:
> The use of large diameter FRP piping has its problems. If this is
a buried pipeline you need to recognise that the material has a very
low strain tolerance. The embedment and compaction is critical. If
the side support is compacted too much the pipe can be made egg
shaped. Then when the cover is compacted you form squarish corners.
These areas are subject to very high strains and the material may
fail from buckling.
>
> The ISO 14692 is a very good design, manufacture and construction
guide. If a manufacturer doesnt comply with this standard then steer
away from them. It is based on the British standard but with a great
deal of input from the University of Strathclyde. They specialised
in testing these materials for the North Sea oil rigs.
>
> Geoff Stone
>
> Sadath Khan <sadathcn@y...> wrote:
> Dear all
> Presently few manufacturers are even producing 4000 mm diameter
GRP pipes and being used for various projects world wide
> Regards
> SADATH
>
> Gang Cvg <cvg_gang@y...> wrote:
> Dear friends,
> Nowadays, for the sea water based cooling
> applications, GRP material is getting more acceptance
> in the industry. This shall be in conformance with
> ISO 14692 specification. The manufacturers claim to
> have executed even sizes as large as 3000 mm (if not
> larger still) in diameter with this material.
> Anybody interested?
> Good luck!
> C. V. Gangadharan.
>
> --- Sadath Khan <sadathcn@y...> wrote:
>
> > Dear All
> > Please note that for cooling and sea waters of
> > Refinereis it is better to use FRP piping systems as
> > they are non corrsoive and provides longer service
> > life with out any maintance
> > AWWA C-950 and M 45, BS5480, and ASME B 31.3 codes
> > support these non mettalic pipes
> > above is for your information
> > Regards
> > SADATH
> >
> > Rakesh Patil <rpa@l...> wrote:
> > 68" CS pipes must be available. we also used 64" CS
> > Pipes during our -
> > Refinary Expansion Project and it was for Cooling
> > Water Lines that runs
> > underground.
> >
> > do you need for the same purpose?
> >
> > regards,
> > rakesh
> >
> >
> >
> > Tushar.Zope@l...
> > Sent by: PipingDesign@yahoogroups.com
> > 07/11/2005 09:05 AM
> > Please respond to
> > PipingDesign@yahoogroups.com
> >
> >
> > To
> > PipingDesign@yahoogroups.com
> > cc
> >
> > Subject
> > Re: [PipingDesign] 68" pipe
> >
> >
> >
> >
> >
> >
> > Please specify the fluid to be handles and Pr/Temp.
> > of the service.
> >
> > Then only some suggestion can be given.
> > How ever such big sizes are generally used with
> > cement pipes, CS+cement
> > lined, only CS, or FRP pipes.
> >
> > With best regards.
> >
> > Tushar Zope
> > Linde Process Technologies India Ltd,
> > Baroda, India 390 007
> >
> >
> >
> >
> > joshy joseph <joseph230276@y...>
> > Sent by: PipingDesign@yahoogroups.com
> > 07/09/2005 02:11 PM
> > Please respond to
> > PipingDesign@yahoogroups.com
> >
> >
> > To
> > PipingDesign@yahoogroups.com
> > cc
> >
> > Subject
> > [PipingDesign] 68" pipe
> >
> >
> >
> >
> >
> >
> >
> > Hello Friends
> >
> > how is everybody
> >
> > Guys i would like to use 68" line for a special area
> > inside refinery is
> > there any pipes avialable in ASME or API standards
> > please suggest me
> >
> > regards
> >
> > joshy
> >
> >
> >
> >
> > ---------------------------------
> > How much free photo storage do you get? Store your
> > friends n family photos
> >
> > for FREE with Yahoo! Photos.
> > http://in.photos.yahoo.com
> >
> > [Non-text portions of this message have been
> > removed]
> >
> >
> >
> >
> >
> > =========================================
> > PipingOffice - Excel Spreadsheets for Piping
> > Calculations
> > http://www.pipingoffice.us/
> > =========================================
> > Main site: http://www.pipingdesign.com
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been
> > removed]
> >
> >
> >
> > =========================================
> > PipingOffice - Excel Spreadsheets for Piping
> > Calculations
> > http://www.pipingoffice.us/
> > =========================================
> > Main site: http://www.pipingdesign.com
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been
> > removed]
> >
> >
> >
> > =========================================
> > PipingOffice - Excel Spreadsheets for Piping
> > Calculations
> > http://www.pipingoffice.us/
> > =========================================
> > Main site: http://www.pipingdesign.com
> >
> >
> >
> >
> > ---------------------------------
> > YAHOO! GROUPS LINKS
> >
> >
> > Visit your group "PipingDesign" on the web.
> >
> > To unsubscribe from this group, send an email
> > to:
> > PipingDesign-unsubscribe@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to the
> > Yahoo! Terms of Service.
> >
> >
> > ---------------------------------
> >
> >
> >
> >
> > ---------------------------------
> > Sell on Yahoo! Auctions - No fees. Bid on great
> > items.
> >
> > [Non-text portions of this message have been
> > removed]
> >
> >
>
>
>
>
> ____________________________________________________
> Sell on Yahoo! Auctions â no fees. Bid on great items.
> http://auctions.yahoo.com/
>
>
> =========================================
> PipingOffice - Excel Spreadsheets for Piping Calculations
> http://www.pipingoffice.us/
> =========================================
> Main site: http://www.pipingdesign.com
>
>
>
>
> SPONSORED LINKS
> Mechanical engineering Mechanical engineering jobs Cad drafter
Process piping Mechanical
>
> ---------------------------------
> YAHOO! GROUPS LINKS
>
>
> Visit your group "PipingDesign" on the web.
>
> To unsubscribe from this group, send an email to:
> PipingDesign-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
>
>
> ---------------------------------
>
>
>
>
> ---------------------------------
> Yahoo! Mail for Mobile
> Take Yahoo! Mail with you! Check email on your mobile phone.
>
> [Non-text portions of this message have been removed]
>
>
>
> =========================================
> PipingOffice - Excel Spreadsheets for Piping Calculations
> http://www.pipingoffice.us/
> =========================================
> Main site: http://www.pipingdesign.com
>
>
>
>
> ---------------------------------
> YAHOO! GROUPS LINKS
>
>
> Visit your group "PipingDesign" on the web.
>
> To unsubscribe from this group, send an email to:
> PipingDesign-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
>
>
> ---------------------------------
>
>
>
>
>
> Design Detail and Development (a division of Blenray Pty Ltd)
>
> Mail Address PO Box 1351 Castle Hill NSW 1765 Australia Tel Mob
0402 35 2313 Office 02 8850 2313 AH 02 8850 2324
> We specialise in pipe network and waterhammer analysis, pipe
stress analysis, the design of buried pipelines and thermoplastic
pipe systems.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
PipingOffice - Excel Spreadsheets for Piping Calculations
http://www.pipingoffice.us/
Main site:
http://www.pipingdesign.com
SPONSORED LINKS
Online mechanical engineering degree Process piping Mechanical engineering
Mechanical engineering class Mechanical engineering college Mechanical
engineering degree
YAHOO! GROUPS LINKS
Visit your group "PipingDesign" on the web.
To unsubscribe from this group, send an email to:
PipingDesign-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Design Detail and Development (a division of Blenray Pty Ltd)
Mail Address PO Box 1351 Castle Hill NSW 1765 Australia Tel Mob 0402 35 2313
Office 02 8850 2313 AH 02 8850 2324
We specialise in pipe network and waterhammer analysis, pipe stress analysis,
the design of buried pipelines and thermoplastic pipe systems.
[Non-text portions of this message have been removed]
Received on Tue Sep 13 01:53:00 2005