Dear Weixing,
The middle one is for a 2K magnet, correct?
After removing the plastic cap, this is a KF16 fitting, and if I
remember correctly the vacuum plug has an M6 left-handed thread. Pump
adapters are available from the German company "Cryotherm", but a
competent machine shop should be able to make a working adapter, too.
Best,
Matthias
On 01/08/2025 19:56, Anklin, Clemens via groups.io wrote:
> Dear Weixing
>
> the top is a standard KF-25 fittings. the valve is behind the fitting
> towards the transfer line.
> I am not familiar with the other two.
>
> Clemens
>
>
> On 7/31/2025 4:39 PM, Zhang, Weixing via groups.io wrote:
>> **EXTERNAL EMAIL**
>>
>> Dear Clemens,
>>
>> ??
>>
>> The pump adapter is typically included with Varian NMR systems;
>> however, I haven???t seen one provided with the Bruker systems.
>> We currently have three types of transfer lines from Bruker
>>
>> Would it be possible to purchase a pump adapter directly from Bruker?
>>
>> ??
>>
>> Best regards,
>>
>> Weixing
>>
>> ??
>>
>> *From:*main_at_ammrl.groups.io <main_at_ammrl.groups.io> *On Behalf Of
>> *Anklin, Clemens via groups.io
>> *Sent:* Wednesday, July 30, 2025 3:10 PM
>> *To:* main_at_ammrl.groups.io
>> *Subject:* Re: [AMMRL] Helium Transfer Lines - Refreshing vacuum.
>> #poll-notice
>>
>> ??
>>
>> *Caution: External Sender. Do not open unless you know the content is
>> safe.*
>>
>> ??
>>
>> Hi Ken
>>
>> in general we recommend to pump it when it gets excessively cold
>> during transfers or when you think it takes a lot longer than usual to
>> cool down. This would indicate a soft vacuum.??
>> So more need based than time based
>>
>> Clemens
>>
>> On 7/30/2025 12:08 PM, Kenneth Sharp-Knott via groups.io wrote:
>>
>> **EXTERNAL EMAIL**
>>
>> A new poll has been created:
>>
>> Inspired both by recent discussions on the forum about capturing
>> helium during a fill and a recent visit by an engineer to our
>> facility.
>>
>> ??
>>
>> How often do you pump down your helium transfer line?????
>>
>> /I will admit that we never have since I joined the facility in
>> 2013 and I didn't realize that you could./
>>
>> 1. Never
>> 2. Every fill
>> 3. Every year or more frequently
>> 4. More than yearly
>> 5. What? You can pump down a helium transfer line???
>>
>> Click Here To Vote <https://ammrl.groups.io/g/main/vote?pollid=50667>
>>
>> Do not reply to this message to vote in the poll. You can vote in
>> polls only through the group's website.
>>
>>
>> --
>> ======================================================================
>> Clemens Anklin Ph.D. Vice President Bruker BioSpin NMR Applications &
>> Training 15 Fortune Drive NEW Phone: 978-313-5NMR(5667) Billerica MA
>> 01821 bluesky: _at_canklin.bsky.social web: www.bruker.com <http://
>> www.bruker.com/> e-mail: clemens.anklin_at_bruker.com
>> ======================================================================
>>
>>
>> ------------------------------------------------------------------------
>>
>> Email Disclaimer: www.stjude.org/emaildisclaimer
>> Consultation Disclaimer: www.stjude.org/consultationdisclaimer
>
> --
> ======================================================================
> Clemens Anklin Ph.D. Vice President Bruker BioSpin NMR Applications &
> Training 15 Fortune Drive NEW Phone: 978-313-5NMR(5667) Billerica MA
> 01821 bluesky: _at_canklin.bsky.social web: www.bruker.com e-mail:
> clemens.anklin_at_bruker.com
> ======================================================================
>
--
Dr. rer. nat. Matthias Brandl (he/him or they/them)
Technical University of Munich
TUM School of Natural Sciences - BNMRZ
Chair of Biomolecular NMR Spectroscopy (Prof. Sattler)
Lichtenbergstr. 4 (postal)
Ernst-Otto-Fischer-Str. 2 (physical)
85748 Garching b. Muenchen
Phone +49 89 289-52617
matthias.brandl_at_tum.de
https://www.sattlerlab.de/
https://www.bnmrz.org/
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Received on Fri Aug 01 2025 - 19:17:01 MST