[Dsg-rich] RICH N2 system automatic backup

[William Crahen]

George, I need more information about this system- please provide the 
following:

indicate line sizes and material on the diagram. I also need the 
corresponding attachment fittings information, manufacturer and part 
number. If the tubing is plastic, part numbers for the tube inserts if 
required by the manufacturer. The same information is needed on the 
parts list you provided- some are listing manufacturer info (Grainger is 
a distributor, not a manufacturer).

there is a relief valve on this system- where is the sizing calculation?

what is the pressure system number associated with this system?

where is this system physically located?

Are there actual mechanical drawings of this system?


On 12/14/2018 1:18 PM, George Jacobs wrote:
>
> Please find attached files for the RICH N2  purge back-up supply.
>
>
> -- 
> George Jacobs
> Jefferson Lab (TJNAF)
> STE 12
> 12000 Jefferson Ave.
> Newport News, VA 23606
>
> (office) 757-269-7021
>
> (cell)   757-876-0480
>
> (email) jacobsg at jlab.org
>
> (website) https://userweb.jlab.org/~jacobsg
>
>
>
> ------------------------------------------------------------------------
> *From:* Dsg-rich <dsg-rich-bounces at jlab.org> on behalf of Tyler Lemon 
> <tlemon at jlab.org>
> *Sent:* Friday, December 14, 2018 12:40 PM
> *To:* Bob Miller; Bill Crahen; dsg-rich
> *Subject:* Re: [Dsg-rich] RICH N2 system automatic backup
>
> Hello George,
>
>
> Can you send Bob Miller and Bill Crahen the drawing, pressure systems 
> numbers and any other documentation you have on the RICH N2 automatic 
> back up?
>
>
> Bill will be the DA for it.
>
>
>
> Best regards,
>
> Tyler
>
>
>
> ------------------------------------------------------------------------
> *From:* Bob Miller <rmiller at jlab.org>
> *Sent:* Friday, December 14, 2018 9:25 AM
> *To:* Tyler Lemon
> *Cc:* Bill Crahen; Amrit Yegneswaran
> *Subject:* Fwd: Re: [Dsg-rich] RICH N2 system automatic backup
>
> Hi Tyler,
>
>
> Please send the drawings, pressure systems number, and whatever 
> documentation you have to Bill Crahen and myself.
>
>
> Bill will be the DA on this project.
>
>
> Regards,
>
> Bob
>
>
>
> -------- Forwarded Message --------
> Subject: 	Re: [Dsg-rich] RICH N2 system automatic backup
> Date: 	Wed, 12 Dec 2018 19:39:33 -0500
> From: 	Amrit Yegneswaran <yeg at jlab.org> <mailto:yeg at jlab.org>
> To: 	Marco Contalbrigo <mcontalb at fe.infn.it> 
> <mailto:mcontalb at fe.infn.it>, Patrizia Rossi <rossi at jlab.org> 
> <mailto:rossi at jlab.org>, Bob Miller <rmiller at jlab.org> 
> <mailto:rmiller at jlab.org>
> CC: 	dsg-rich <dsg-rich at jlab.org> <mailto:dsg-rich at jlab.org>
>
>
>
> bob,
>
> please assign a design authority for the analysis and approval of the 
> system.
>
> thanks
>
> amrit
>
>
>
> ------------------------------------------------------------------------
> *From:* Dsg-rich <dsg-rich-bounces at jlab.org> 
> <mailto:dsg-rich-bounces at jlab.org> on behalf of Marco Contalbrigo 
> <mcontalb at fe.infn.it> <mailto:mcontalb at fe.infn.it>
> *Sent:* Wednesday, December 12, 2018 3:33 PM
> *To:* Patrizia Rossi
> *Cc:* dsg-rich
> *Subject:* Re: [Dsg-rich] RICH N2 system automatic backup
> Dear Tyler,
> thank to DSG for this nice upgrade!
> Marco.
>
> On Wed, 12 Dec 2018, Patrizia Rossi wrote:
>
> > Very appreciated Christmas gift!! Thank you Tyler and DSG people!!
> > Patrizia
> >
> > Sent from my iPhone
> >
> > On Dec 12, 2018, at 3:13 PM, Tyler Lemon <tlemon at jlab.org> 
> <mailto:tlemon at jlab.org> wrote:
> >
> >       Hello,
> >
> >
> >       DSG has developed a system to automatically switch RICH to a 
> back up
> >       bank of nitrogen in the event that Hall B's main nitrogen 
> supply is
> >       stopped.
> >
> >
> >       The system is designed to use a pneumatic valve operated using the
> >
> >       pressure from the main N2 supply line that will open if that 
> supply
> >       pressure drops. The open pneumatic valve will then allow N2 to 
> flow to
> >       RICH from a bank of nitrogen bottles. Attached is a revised RICH
> >       nitrogen system diagram showing the new automatic switch-over
> >       components.
> >
> >
> >       George has assembled the new components and DSG would like to 
> test them
> >       at the beginning of next year after the holidays. To be able 
> to do any
> >       sort of testing, the components and test procedure will need 
> to undergo
> >       a pressure systems analysis by a Design Authority (DA).
> >
> >
> >       DSG will provide the necessary documentation to the DA once one is
> >       requested and assigned.
> >
> >
> >       Best regards,
> >
> >       Tyler
> >
> >       <RICH-N2-valve panel-REV2..pdf>
> >
> > _______________________________________________
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> >
> >
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