Use of flanges in buried raw water pipeline

[JFCmech]

Hi
Does anyone have any experience in the use of flanged joints in a buried steel raw water pipeline? Is it a good idea? Has anyone done it? If so, what problems were found?

We are looking at 8km of 600NB pipe, with some above ground and some buried. The pipe has an internal epoxy coating, which would be easier to apply in 12m lengths, and quicker to install, as prefabrication is possible. This is a fast track project, hense the time concern. Cathodic protection and Denso wrap on outside. I'm not overly comfortable with the idea, due to maintenance concerns. Any thoughts?

 

[rconner]

fyi Fyi

http://www.dipra.org/pdf/ACpowerLines.pdf

 

[BigInch]

No legend. Farmers and ranchers have been known to run fences parallel to HV lines just to get some power off of them. Don't do it, its very illegal.

http://ieeexplore.ieee.org/Xplore/l...=&isnumber=&arnumber=244240&authDecision=-203

Here's another one for you. Don't store your pipe in the north-south direction.



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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch

http://virtualpipeline.spaces.live.com/