Hi Pat, So sad to hear! I have seen such failures on the CX100 shipping dewars. Generally failure occurs close to the neck of the dewar and is apparently probably caused by a hard side or angular impact cracking a weld or the shell. Most the failures I have seen have been When shipping in the old black outer shipping cases, fewer with the newer gray ones and none with the extra large gray ones. The dewars are not repairable you have a new paper weight! Steve
*************** Stephan Ginell 630-212-3818 gin...@anl.gov On Jun 24, 2020, at 2:27 PM, Patrick Loll <pjl...@gmail.com> wrote: Hello community, We recently had a dry shipping dewar fail catastrophically (while en route to the beam line, so, major trauma). I sent it to a company that specializes in repair and refurbishing of cryogenic tanks, and they told me it has an internal leak, and hence is not reparable. I was expecting that the valve had failed, so the internal leak diagnosis came as a surprise. Has anyone else had a similar experience? Any ideas about how an internal leak might come about? The dewar is (was) a Taylor/Wharton CX100, and it was traveling in its bespoke shipping case. Thanks for any insights that might satisfy my curiosity and/or prevent future mishaps of this sort. Cheers, Pat __________________________ Patrick J. Loll, PhD Professor of Biochemistry & Molecular Biology Drexel University College of Medicine Room 10-102 New College Building 245 N. 15th St. Philadelphia, PA 19102-1192 USA (215) 762-7706 pj...@drexel.edu<mailto:pj...@drexel.edu> ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
