hey jlrii, glad to hear from someone who has some experience
the actuators are "MV-1100 series linear electric valve actuator" consisting of a motor, gearbox w/feedback gears, control/feedback amplifier, etc.
http://www.jordancontrols.com/pdf/Bu...00_MV-1500.pdf
these came out of Oak Ridge, no telling their original use but the valves are for metering; they are similar to a needle valve but have only the slightest taper - perhaps this was to skirt the 1% min valve change
my intended use is as flow control in the range of 0.2 to 5gpm, so I suspect I'll have go get a more appropriate valve(S)
my present task is ginning up a 4-20mA adjustable source via GPIB, they are not cheap
suggestions ?
EDIT
and if you go to Foxboro they say the flow control division was sold Jan 5 to another co
??
I got this info from Jordan