[Dsg-rich] RICH N2 system automatic backup

[Marco Contalbrigo]

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> 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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> 
>