control valve setting-water distribution system.
control valve setting-water distribution system.
(OP)
can we change a setup value of the control valve automatically? by using solenoid control?
for example, I have a pressure sustaining valve, I want the setting change by time, like, from 0-4am, the setting is 80 psi, 4-8am, the setting is 70 psi, 8am-12pm, the setting is 60 psi.
thanks.
for example, I have a pressure sustaining valve, I want the setting change by time, like, from 0-4am, the setting is 80 psi, 4-8am, the setting is 70 psi, 8am-12pm, the setting is 60 psi.
thanks.





RE: control valve setting-water distribution system.
Steve
RE: control valve setting-water distribution system.
You do not mention dimension of pipeline or flow requirements. A second alternative would be to have an electric operated control valve, for instance needle valve type to cover a widest possible range of situations, have a 4-20mA or similar pressure meter far downstream and regulate the regulating valve with at best continous 4-20mA signal in and out compared to downstream pressure.
In case: remember slow regulating and damped and large enough hysteresis.