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@yahoo.com> 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@yahoo.com> 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.
> 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@lntenc.com> 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
>
>
>
> <a href="/group/PipingDesign/post?postID=jDdANYqd0_7gOjAgZJz-0HXA9r4f4MrQAN2UEY1J_mIbIiDAj3lgCtFecQxlo3lQpZ9fRHgiDYa3FrjHzX4E">Tushar.Zope@linde-le.com</a>
> Sent by: <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
> 07/11/2005 09:05 AM
> Please respond to
> <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
>
>
> To
> <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
> 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@yahoo.co.in>
> Sent by: <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
> 07/09/2005 02:11 PM
> Please respond to
> <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
>
>
> To
> <a href="/group/PipingDesign/post?postID=oiiO3ypyF3Nj3u1T2wMB7vi8C-d0w97K5EVHI68qnJ2BcIknrjSxqiFcVW0sTcuiFbudLcB4YrAB_s9Pq6ibSQzSfVugtA">PipingDesign@yahoogroups.com</a>
> 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
>
>
>
>
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[Non-text portions of this message have been removed] Received on Thu Sep 01 07:33:00 2005
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