Hi Brian,
I’ve likely got the valve you need and I would be glad to send you
one.
Also, rough pump is fine but turbo is better.
Best regards,
Jon
MR Resources, Inc.
The Leader in NMR Spectrometers, Services and Parts
160 Authority Drive
Fitchburg, MA 01420
http://www.mrr.com/
Tel: 978-345-9011
> From: main_at_ammrl.groups.io On Behalf Of Fulton, Luke via groups.io
> Sent: Wednesday, September 3, 2025 3:53 PM
> To: main_at_ammrl.groups.io
> Subject: Re: [AMMRL] vacuum attachment for He transfer line
Hi Brian,
Roughing pump should be fine, no need for a turbo.
The biggest QOL improvement comes from attaching a vacuum gauge. Indispensable
for knowing achievable end point, measuring vacuum progress, and re-testing
for softening. Unfortunately they run upwards of $800. I'd check with coworkers
before buying new; any synthetic lab doing schlenk work would have several in use.
Kind regards,
Luke
Luke Fulton, PhD
CHEM BLDG R003
NMR Core Facility Director
Unit 3060
COR2E & Department of Chemistry
55 N Eagleville Road
University of Connecticut
Storrs, CT 06279
email: fko24003_at_uconn.edu
(alias): luke.fulton_at_uconn.edu
mobile: (603) 953-5275
Office: (860) 486-4069
> From: main_at_ammrl.groups.io on behalf of Brian Antalek via groups.io
> Sent: Wednesday, September 3, 2025 1:46 PM
> To: main_at_ammrl.groups.io io
> Subject: [AMMRL] vacuum attachment for He transfer line
I have a He transfer line that has softened and needs to be pumped down. It's
from a 2005 ish Bruker AVII 300 MHz instrument and the vacuum connector piece
cannot be found (see attached photo). Does anyone know where I can find one?
Also, will a rough pump be enough, in general?
Thanks
Brian
Brian Antalek
Bausch + Lomb, Inc.
1400 N. Goodman Street
Rochester, NY 14609
http://www.bausch.com
brian.antalek_at_bausch.com
(585) 752-8452 mobile
(585) 666-1127 Teams
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Received on Thu Sep 04 2025 - 10:04:06 MST