I stand corrected in that the "gate" valve should have been a
"ball" valve in my prior posting. The information in the
home page, and the parts discussion, is correct and refers
to a "ball" valve. The valve used is brass with teflon seats
(this is in the part number).
Thanks to Doug Meinhart for pointing this out.
John Harwood, D.Sc.
NMR Facility Director
Computational Facility Director
University of Illinois at Chicago
Department of Chemistry (M/C 111)
845 West Taylor Street
Chicago, IL 60607-7061
harwood@hugh.chem.uic.edu
http://www.chem.uic.edu/NMRFAC/nmr1-homepage.html