[Dsg-mvt] Premix back up system

[Matthew Marchlik]

George,

Install a .125" Okeefe orifice upstream of the C4H10 supply regulator.

Install a .052" Okeefe orifice upstream of the argon supply regulator.

I already have a 100 psig relief valve, capable of 90 SCFM air that you may use. Install it after the two supply lines tee together like it was done in the EEL.

Matt

----- Original Message -----
From: "mdefurne" <mdefurne at jlab.org>
To: "George Jacobs" <jacobsg at jlab.org>, "Aune Stephan" <stephan.aune at cea.fr>, dsg-mvt at jlab.org, "Bob Miller" <rmiller at jlab.org>, "Matthew Marchlik" <marchlik at jlab.org>, "Yuri Gotra" <gotra at jlab.org>, "SABATIE Franck" <Franck.Sabatie at cea.fr>
Sent: Wednesday, September 20, 2017 2:00:03 PM
Subject: Premix back up system

Dear all,

After discussing with Bob, it seems that we should have this premix 
back-up system for MVT to be sure that we will have gas available for 
the CVT test in the Hall before integration in the solenoid.

George, do we have all components to build it? Or do we have to order 
some? If yes, how much would it cost? Please answer ASAP so that we can 
take action quickly.

Do we need also to establish a new OSP for the Hall with this premix 
system? What about with the mixing system? Has it already been done?

Thank you for your replies,

Kind regards,

Maxime