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Requirement For Double-Walled Piping (Pipe-In-Pipe) For Hydrocarbon Ga

double-walled pipe-in-pipe standards class

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#1 Leonard W

Leonard W

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Posted 01 December 2016 - 02:02 AM

Dear Members,


I am currently writing a report on the commissioning of Inert Gas Generator (IGG) on a FPSO. The supply of fuel gas to this IGG is via a double-walled piping or pipe-in-pipe because the pipe routing passes through a non-hazardous area. I was only verbally told that this is a safety requirement to provide double containment for hydrocarbon flowing lines which has no choice but to pass through a safe area. Can anyone tell me which standard or requirement explicitly mentions this so that I could reference when making that statement in my report? Is it a API or Class requirement or SOLAS? 


Appreciate your advice.


Kind regards,
Leonard W.

Edited by Leonard W, 01 December 2016 - 02:11 AM.

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