Re: Fuel Gas Piping

A quick Google search gives me this:

<a href="http://www.nfpa.org/Codes/Current_Codes_and_Standards/Info_About_D">http://www.nfpa.org/Codes/Current_Codes_and_Standards/Info_About_D</a> ocuments/Overview_of_Major_Documents/NFPA_54__National_Fuel_Gas_Co d/nfpa_54__national_fuel_gas_cod.html

<a href="http://www.osha-slc.gov/OshStd_data/1910_0253.html">http://www.osha-slc.gov/OshStd_data/1910_0253.html</a>

<a href="http://www.aga.org/pdf/PublicInfo/CodesStandards/NationalFuelGasCo">http://www.aga.org/pdf/PublicInfo/CodesStandards/NationalFuelGasCo</a> de/web_page_origin_and_scope.pdf

You're asking pretty specific technical questions, the ASME discussion board can undoubtedly help you as well:

<a href="http://www.asme.org/bboard/main-frame.tcl?topic=Pressure%20Vessel%">http://www.asme.org/bboard/main-frame.tcl?topic=Pressure%20Vessel%</a> 20and%20Piping

I didn't look too carefully into your inquiry, do you have access to local codes? In any case, I would hope that the RT is done *after* the PWHT.

Paul

• Original Message ----- From: bhanu kiran <vtbk@yahoo.com> To: <PipingDesign@yahoogroups.com> Sent: Monday, April 09, 2001 4:42 AM Subject: [PipingDesign] Fuel Gas Piping

> Urgent :
>
> Please clarify whether,
>
> a) Fuel gas piping requires 100% RT as per BS 31.2
> standard regardless of diameter and thickness.
>
> b) Fuel gas piping requires 100% PWHT as per BS 31.2
> standard regardless of diameter and thickness.
>
> If there are any other standards, please clarify on
> the two points.
>
> Thanks.
>
> Bhanu
Received on Mon Apr 09 11:58:00 2001