[Dsg-rich] RICH gas panel mods

[Marc McMullen]

Thanks,  Matt

I'll tend to these changes as soon as possible. I have to go look at the 
MVT mfcs for awhile.

As far as the filter is concerned I looked at the receipt and corrected 
the p/n.

We only have one compressor in the EEL. The original was really 
considering the use in the hall, so we can add it to the diagram, but we 
will never have two in the eel. George can give me the spec for the cu tube.

The dewars will be set to 20 psi.



Marc


On 12/7/2017 8:59 AM, Matthew Marchlik wrote:
> Marc,
>
> They don't have to be signed off in order to sign the alterations off, but I need them to be correct for my documentation. You can submit them to the doc repository when you have time.
>
> MV1 is already existing in the air system, no need for it to be red.
>
> Why is there only one compressor instead of two as shown in the original P&ID?
>
> Remove the fitting size notes below the transducer, they're not needed.
>
> Remove "McMaster-Carr 89785K846" from the manifold detail.
>
> I thought the filter being added to the N2 system was "Atlas Copco part# 8102260497", you're showing it as 8102260455.
>
> You should change the set point of RV1 to 35 psi from 45 psi since the 35 psi is what is really installed. Keep it black, it's not being counted as an alteration since it was there from the beginning.
>
> Are the N2 dewar regulators 0-20 psi, or will they be set to 20 psi?
>
> Instead of brass, label the brass tubing "copper."
> What is the ASTM spec on the Cu tubing?
>
> Matt
>
> ----- Original Message -----
> From: "Marc McMullen" <mcmullen at jlab.org>
> To: "Matthew Marchlik" <marchlik at jlab.org>, "Bob Miller" <rmiller at jlab.org>, "dsg-rich" <dsg-rich at jlab.org>, "Jenord Alston" <jalston at jlab.org>
> Sent: Wednesday, December 6, 2017 4:58:50 PM
> Subject: RICH gas panel mods
>
> Hi Matt and Bob ,
>
> Here are the P&I diagrams for the changes, which are in red. Please
> review and sign off.
>
> Hi Jenord,
>
> If you are available, we will need a mechanical examination done once
> the work is completed. We are scheduling the install work on Friday, and
> should have everything done by 2pm, if not earlier. Matt is scheduled to
> do the leak/pressure test immediately after. We would like to energize
> by C.O.B. on Friday.
>
> Thanks,
>
>

-- 
Marc McMullen
Detector Support Group
757-269-7738