All,
I am forwarding the below request on behalf of a colleague of mine here at Lubrizol. I know that this has appeared before on AMMRL.
We have been using thick black vacuum hoses to do our nitrogen fills since 1984 and never have we seen one shatter sending pieces of frozen rubber flying in all directions. They do split occasionally but this recent occurrence was clearly a safety hazard that we do not want to encounter again.
We appreciate any input into where we can find a metal nitrogen transfer line.
Best Regards,
Kurt
________________________________
Kurt Wollenberg(KFW) Phone:(440) 347-2026
The Lubrizol Corporation Fax:(440) 347-4482
Wickliffe, OH 44092 Mail:153B
mailto:kfw_at_lubrizol.com
http://www.lubrizol.com/
-----Original Message-----
> From: Karabatsos, Julie
> Sent: Friday, October 18, 2002 10:30 AM
> To: Wollenberg, Kurt
> Subject: Search for LN2 transfer line
Kurt,
Here is what we are looking for;
We are looking for a safe means of transferring liquid nitrogen from the dewar to the NMR during our weekly nitrogen fills. We have always used the thick black vacuum hoses, attached to the dewar with a clamp. This has worked fine, but periodically the hoses crack during a fill, and yesterday one actually shattered. We are hoping to find a metal transfer line similar to the helium transfer line. The line would have to be fitted with a tip at one end to connect with the dewar, and some sort of fitting at the other end to slide onto the nitrogen inlet port on the NMR. Does anyone have ideas where we can look?
Julie F. Karabatsos
The Lubrizol Corporation
Phone: 440-347-2260
fax: 440-347-4482
email: jfka_at_lubrizol.com
Received on Fri Oct 18 2002 - 18:41:37 MST