>>
>>         In general, what type of ferrule is recommended with metal-to-metal
>> swagelok connections--teflon or steel?
>>
>> ********************************
>> Steve Nelson
>>
>

Steve-

Here is another alternative that hasn't yet been mentioned: the Valco
Instrument Co. (1-800-FOR-VICI) sells 1/2-inch ferrules made out of Kel-F,
though they don't seem to make ss fittings of the same size. The Valco
ferrules are approximately the same size and shape as Swagelock, but I will
admit to never having tried a Valco ferrule in a Swagelock fitting.

Alex


*****************************************
Alex L. Sessions, Ph.D. Candidate
Biogeochemical Laboratories
Department of Geology, Indiana University
1005 E. 10th Street
Bloomington, IN 47405
Phone: (812) 855-1382
FAX: (812) 855-7961
*****************************************