Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcdc!hpfcmgw!ron
From: ron@hpfcmgw.HP.COM (Ron Miller)
Newsgroups: sci.electronics
Subject: Re: electrically operated valves
Message-ID: <1240006@hpfcmgw.HP.COM>
Date: 12 May 89 15:41:27 GMT
References: <23526@shemp.CS.UCLA.EDU>
Organization: HP Fort Collins, CO
Lines: 20

Re: Really want a proportional GATE valve?


Huh?

Gate valves aren't throttling valves. Gate valves are like flapper or
butterfly valves, they are either OPEN or CLOSED but not really in between.
Gate valves are used where minimal flow restriction is desired when the
valve is open. They are expensive but pretty effective for isolation 
functions.


If you want a throttling valve, buy a throttling valve. Recommend you
try contacting a plumbing supply shop for the name of their valve vendor
then contact the valve vendor for further contact names.

It isn't going to be easy until you find the network of professionals who
design or repair industrial fluid  processing plants.

Ron Miller