Hi everyone,
I would like to thank Victor, Borlan, Sameer, Benjamin, Richard, Jerry, Rajan, Michael, Todd, Sophia, Philip, Markus, Tony and Colin for your very quick replies!
Here is the summary:
- First of all, the adaptor we looked for is named a "Pump-Out" adaptor.
- You can pump your transfer line yourself as long as you have the required pump, know the procedure and have the pump-out adaptor. Look for physic department; they may be able to do it.
- Basically, Cryofab seems to be the favorite for fixing transfer lines and at a very reasonable price.
- One can buy the pump-out operator from Cryofab but be careful it may or may not work with your transfer line.
- The pump-out tool can be bought from Cryofab at
http://www.earthspecweb.com/misc/cryofab/html/stand_5e.htm
- Companies selling and/or repairing transfer lines and/or selling pump-out operators include:
http://www.iceoxford.com/Repairs.htm
http://www.precisioncryo.com/operators.html
http://www.cryofab.com/products/cryogenic-transfer-lines/liquid-helium-transfer-line-CFHT
- Cryotherm (the OEM) in Germany sells transfer lines at a price almost half what Bruker is asking.
- Someone mentioned the Messer company but they sold their business to a German company.
At any rate, my colleague dicided to send his transfer line to Cryofab. They fixed it for less than a couple hundred dollars (cheaper than the shipping of the line itself!). They did not detect any leak. Let's hope it'll work for a long time now.
As for the pump-out operator from Cryofab, in our case, we would have to modified the transfer line valve itself (which is what Cryofab did in the end with my colleague's line, apparently).
Thanks again for all the replies!
See you at the ENC AMMRL meeting.
Kind regards,
Genevieve
*************************************************
Genevieve Seabrook PhD.
Scientific Associate
NMR Research & Core Facility Manager
UHN, Princess Margaret Cancer Centre
Princess Margaret Cancer Research Tower (PMCRT).
4th floor, Room 4-902
101 College Street
Toronto, ONT, M5G 1L7
Mobile: 416-629-7391
gseabroo_at_uhnresearch.ca
On 20170214 07:53, Genevieve Seabrook wrote:
> Dear NMR community,
>
> One of my NMR colleague got his Bruker 800MHz US2 magnet helium
> transfer line soft or dead. Not sure which yet. Before buying a new
> one from Bruker (which are super expensive), he wants to make sure the
> one he has cannot be pumped again.
>
> 1- It seems that we need an adaptor to get the transfer line pumped
> again. Anyone has a picture of what the adaptor looks like? Or where
> to get it?
>
> 2- We checked with Cryofab and we are not sure whether their helium
> transfer lines are compatible with our helium port. Did anyone buy a
> transfer line from Cryofab (or other sources) that works with the
> Bruker 800MHz US2 magnet?
>
> Thank you in advance for your inputs.
>
> Best regards,
>
> Genevieve
Received on Wed Mar 08 2017 - 10:37:33 MST