examorph Posted March 17, 2012 Posted March 17, 2012 (edited) Dont want to bump this thread and annoy other users, so if your are reading this, thanks. Edited March 17, 2012 by examorph
InigoMontoya Posted March 17, 2012 Posted March 17, 2012 Why do you want stainless? In any control valve designs I've ever seen, the spring (if there is one) stays in a dry, protected environ. It never sees the process fluid or anything like that. Ergo, why stainless?
examorph Posted March 17, 2012 Author Posted March 17, 2012 After researching on control valves, I saw stainless steel springs being used in many examples I read about, this made me think that maybe it has properties that would be needed for the control valve but after reading your comment I am also confused on why stainless steel is used...the only thing that should make contact with the fluid is the diaphragm. I cant find the website I read it on but I remember reading it and making notes on it. Since stainless steel is not required what would you say is the most apropriate material for the spring?
InigoMontoya Posted March 17, 2012 Posted March 17, 2012 On the control valves I have experience with, not even the diaphragm comes in contact with the fluid. As for what I would use... Honestly, I've not designed a control valve (I just use 'em) so I'm not going to be able to name an alloy. I'd just use whatever material gave you the spring constant you're looking for at the lowest cost. Heck, you should be able to buy off the shelf springs! I'm just asking because your requirements don't seem to make sense to me.
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