Date: Thu, 29 Aug 2024 16:49:24 +0200
Hi,
even though it „can NOT cope with the temperatures“, we are
using it over 20 years and magnets and people are still alive and happy.
Cheers,
Jan
From: main_at_ammrl.groups.io <main_at_ammrl.groups.io> On Behalf Of Ulrich
Sent: Thursday, August 29, 2024 3:20 PM
To: main_at_ammrl.groups.io
Subject: Re: [AMMRL] Tubing for N2 fill exhaust?
Hello!
The material can NOT cope with the temperatures - it is up to -5°C capable.
Sorry, please use an ordinary opaque latex tube in the correct size. So you
can vent of the cold nitrogen gas and liquid nitrogen.
We are using for the filling process a special hose system
Hi Beth,
we are using the reinforced PVC tube (softenned PVC both inner part as well
as the outer part) like this
https://www.gumex.cz/h/1125-hadice-na-pitnou-vodu-a-tekute-pozivatiny-01283?Filter=True
either 10/14mm diam. or 16/22 diam. (inner/outer) for different magnets.
This kind of tube works well, once upon a time it breaks, so we cut a new
piece. At a price of ~ 30 CZK/m it does not matter.
NMR LN2-HOSE <https://nmrtools.com/product/nmr-ln2-hose/ >
It is expensive - but it is it worth.
Yours sincerely,
Ulrich Haunz
Cheers,
Jan
---------------------------------------------------------
Jan Lang
Associate Professor
Charles University
Faculty of Mathematics & Physics
Department of Low Temperature Physics
V Holesovickach 747/2
CZ-180 00 Prague 8
Czech Republic
Tel.: +420 221912889
http://nmr.mff.cuni.cz
> From: main_at_ammrl.groups.io On Behalf Of Beth Moscato
> Sent: Monday, August 26, 2024 3:37 PM
> To: main_at_ammrl.groups.io <mailto:main_at_ammrl.groups.io>
> Subject: [AMMRL] Tubing for N2 fill exhaust?
Hi all
This is a ridiculously stupid question, but my Google-fu is currently failing me.
Our exhaust tubing (the type you put on the N2 exhaust port during nitrogen
fills so it doesn’t spit everywhere – we have Oxfords and
a Bruker, all of them seem to be the standard dimension) is ratty, and I am
currently trying to replace it. I’m measuring an inner diameter of
1.6 cm / 0.66”. It seems like the sort of thing I should easily be
able to order on Aldrich or Fisher, but I’m failing to find any
flexible tubing (rubber or otherwise) of that dimension.
Does anyone have a link to a supplier of the correct ID of tubing? Preferably
something that I don’t need to buy in 100’ coils.
This seems like it should be a ridiculously simple thing to find, but I spent
awhile searching and didn’t have any luck.
Thank you!
Beth
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