This is the rubber tubing I use. It is latex rubber, not silicone.
Fisher Scientific Cat number 14-178-5G Tubing, Color: Amber, thick wall; I.D.: 1/2 in.; Wall thickness: 1/8 in.; O.D.: 3/4 in.
Dave
____________________________
David J. Wilbur, Ph.D.
Instrumentation Specialist
Department of Chemistry
Tufts University
62 Talbot Ave.
Medford, MA 02155
voice: 617-627-2163
Fax: 617-627-3443
email: david.wilbur_at_tufts.edu<mailto:david.wilbur_at_tufts.edu>
From: Duggan, Brendan [mailto:bmduggan_at_ucsd.edu]
Sent: Monday, January 13, 2014 5:56 PM
To: ammrl_at_ammrl.org
Subject: AMMRL: Liquid nitrogen transfer lines
I inherited several braided metal liquid nitrogen transfer lines when I took over my current lab and now prefer them to the light brown tubing I have used everywhere else. Unfortunately, most of these transfer lines are leaking where the braided hose meets the metal couplings at the end. Does anyone know if these can be repaired? Alternatively what is the light brown silicon/rubber type material that is often used to transfer nitrogen, and where can I get some?
Brendan M. Duggan, PhD
NMR Facility Director and Associate Project Scientist
Skaggs School of Pharmacy and Pharmaceutical Sciences
University of California at San Diego
9500 Gilman Drive, MC 0684
La Jolla CA 92093
office phone: (858) 534-8763
lab phone: (858) 822-7826
cell phone: (858) 692-2298
email: bmduggan_at_ucsd.edu<mailto:bmduggan_at_ucsd.edu>
http://sopnmr.ucsd.edu
Received on Tue Jan 14 2014 - 09:55:03 MST