Undersea Pipe Standard

[yalkamer]

I would like to receive comments for the below pipe and standards.
We have an undersea pipeline inside a chemical tank terminal.
It is an old BP terminal.
Fluid : paraxylene and similar product
Size : 8"
Wall thickness : 12 mm
It is an isolated pipe.
Pipeline is damaged and we need to replace. But as we dont have any document we can not determine the standards.
It can be acc to API but pls. advice which standard to check.
Photos are attached.

 

[DSB123]

Photos don't look to be undersea!!

If you are operating a Pipeline you should have a technical file with all of the relevant data contained such as original design calcs, material specs, coating spec, lining spec(iff applicable) etc. If you do not have this technical spec you could be contravening the Pipeline Codes applicable in your area.

 

[yalkamer]

DSP123 thanks for comments.
Actually as the plant is an old one and documents were not delivered thru the take over we dont have documentation. Same is valid for other items like valves etc.
I believe there could be an api standard that describes such pipes.

 

[MJCronin]

DSB, Yalk...

This is the same old story...over and over. In every industry...forever.....

The old owners of the plant discarded all equipment and system records when the plant was sold.

The new owners had no idea that any type of records would be useful (they are business types). They just hire a bunch of new (cheap) engineers and task them with the impossible.

The newbies then turn to the internet and ask questions.

Yalk, cut off a piece of pipe with coating and turn it over to a forensic lab for a detailed analysis..... Pay them what they ask

Ask for a determination of both the pipe material and the coating (natural rubber????)

Then.....convince your cheap-ass MBA boss that this is the only real way to proceed as you got no real help from the engineering forum..

-MJC

 

[yalkamer]

Thanks to all for answers.