[labnetwork] regulator question

[Tom Britton]

Hi Rick,

C4F8 isn't very sensitive to temperature swings in range that you've listed, so you won't get much insulating the panel. What is the regulator doing? If you're seeing a rise in the downstream pressure, you could have contamination on the seat. If the flow rate is fluctuating, the regulator may be undersized.

Let's focus on the regulator and your system requirements.

1.       What is the part number on the regulator? Tescom scribes this into the body, either next to the inlet or outlet fitting, or on the bottom.

2.       What is your bottle pressure?

3.       What is the required delivery pressure?

4.       What is the desired flow rate?

5.       Do you have an excess flow switch on the panel? If so, what is the part number?

The age of the panel isn't a concern. As long as you're keeping the gas clean and employing proper cylinder change procedures, that panel will last you for the life of the system. We might play 20 questions here to get this figured out, but this will be a good start.

Best to you sir!

Tom

Tom Britton
Director of Sales
Critical Systems, Inc.
Direct: 208-890-1417
Office: 877-572-5515
www.CriticalSystemsInc.com<http://www.criticalsystemsinc.com/>

[logo for email signature png]



From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Morrison, Richard H., Jr.
Sent: Thursday, July 17, 2014 6:42 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] regulator question

Hi,

My gas room has no temperature control and I am having delivery problems with C4F8 tank. I have a Tescom-100 regulator on the bottle (part of a gas panel 6+ years old).  My question is should I wrap the tank with a blanket to keep it constant temperature?  I have this issue when there are large temperature swings outside my gas room is 70F +-8F

Is the regulator I am using the proper one? Any suggestions are welcome.

Rick


Draper Laboratory
Principal  Member of the Technical Staff
Group Leader Microfabrication Operations
555 Technology Square
Cambridge Ma, 02139-3563

www.draper.com<http://www.draper.com>
rmorrison at draper.com<mailto:rmorrison at draper.com>
W 617-258-3420
C 508-930-3461

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mtl.mit.edu/pipermail/labnetwork/attachments/20140718/8335e18b/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 9501 bytes
Desc: image001.png
URL: <https://mtl.mit.edu/pipermail/labnetwork/attachments/20140718/8335e18b/attachment.png>