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Underground Cased piping

thread338-487434

Underground Cased piping

Underground Cased piping

(OP)
Hi everyone,
A section underground piping will be replaced and there is a need to seal the annular space between the carbon steel casing and the pipe.
Can you guys please, shed some light on regards the type of sealing material normally used for this purpose? What's your experience on similar requirement?
ASME B31.4 at 403.8.6 states "casing ends shall be sealed using a durable, electrically nonconductive material"
436.5.1 (b)(13) Cased crossings shall be inspected during installation to determine that the carrier pipe is supported, sealed, and insulated from the casing.

Thank you in advance and you Have a great day
Leont

RE: Underground Cased piping

Search for “Covalence Pipe Casing End Seals”

Steve Jones
Corrosion Management Consultant

www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

RE: Underground Cased piping

(OP)
Thanks SJones !!
It is a trench with a few hydrocarbon piping in not really good mechanical condition and I have been trying to stay away from welding, high temperature.
I think we needs to put some heat here but for sure is an option.

Thanks SJones !!
Appreciated
leont

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