need to throttle water quickly and automated
need to throttle water quickly and automated
(OP)
We have an application where we will need to throttle water flow very quickly and precisely. Specs are 40-60psi, 30-40gpm, and full open to full closed in .1sec or less with ability to precisely tune in partial openings.
We need a rather economical solution here. We have considered a poppet style like a turbo wastegate or a butterfly valve. Either of these controlled with an air cylinder and pwm an air solenoid to vary the pressure to the valve or find a type of servo control for this to be all electric.
Could anyone off any opinions on our ideas and maybe other ideas or hard parts to test our theories? We are thinking air might be the easiest but may fight flutter or inconsistent valve control. Not sure.
We need a rather economical solution here. We have considered a poppet style like a turbo wastegate or a butterfly valve. Either of these controlled with an air cylinder and pwm an air solenoid to vary the pressure to the valve or find a type of servo control for this to be all electric.
Could anyone off any opinions on our ideas and maybe other ideas or hard parts to test our theories? We are thinking air might be the easiest but may fight flutter or inconsistent valve control. Not sure.





RE: need to throttle water quickly and automated
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RE: need to throttle water quickly and automated
Are you sure you need 100-0% throttling in 0.1 second? Define "rather economical." I think your response time of 0.1 second will destroy the concept of economical.
RE: need to throttle water quickly and automated
Economical - we priced simple electric valves at over 800 dollars that that is way to costly. We can buy a simple butterfly for 80 bucks and provide our own automation that should prove faster and more accurate.
RE: need to throttle water quickly and automated
Have you considered likely impact from waterhammer on such an instantaneous flow interuption?
RE: need to throttle water quickly and automated
RE: need to throttle water quickly and automated
For the record though, I don't have experinence with these types of applications. My experience in piping is somewhat limited.
-- MechEng2005