Luke,
Most people using indoor, closed circuit water-cooling systems go with the
Neslab or Haskris models.
The Neslab units can be found from most of the usual suppliers, and I think
Fisher still offers state discounts. I’m not sure whether getting
a separate unit for each cold head, or one unit for both cold heads will
be better for your needs.
_
https://assets.thermofisher.com/TFS-Assets/LED/Specification-Sheets/D11083*.pdf
If you have a reliable chilled water system in your building, then it could
work fine, as long as you replace your filters regularly.
Ronald Shin
University of Alabama at Birmingham
Central Alabama High Field NMR Facility
> From: main_at_ammrl.groups.io On Behalf Of Fulton, Luke via groups.io
> Sent: Tuesday, July 29, 2025 11:27 AM
> To: main_at_ammrl.groups.io
> Subject: [AMMRL] Coolant for He Compressors
Hi all,
I'm planning end-of-life transition for our chilled water recirculator which
services two helium compressor cold heads. The main unit sits in a hallway
just outside the lab, and the building's design doesn't allow for putting
it anywhere else.
1) Any recommendations for vendor or chiller type? I'm also interested in
general quotes (feel free to message me privately with any insights on what
we might expect).
2) Some in my department are pushing for integrating into the chemistry
building's existing chilled water network. I've not heard of labs choosing
this approach, and my impression is endless complications from algae and
other sundry building issues. Anyone seen success with this? Or is it one
of those 39-and-a-half-foot-pole topics?
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<mailto:fko24003_at_uconn.edu>
(alias): luke.fulton_at_uconn.edu<mailto:luke.fulton_at_uconn.edu>
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Received on Tue Jul 29 2025 - 11:52:40 MST