JonathanDavidHarris
commented
6 years ago ProCoDa controls solenoid Valves and makes it easier to set valves as open and closed. Open valves allow water to pass through while closed valves prevent water from flowing through them. The schematic you are looking at has the valves set for filtration. The closed valve was at the top of the filter, that is not the effluent for filtration. Instead, the water passed through the two exits to the right and went into the effluent turbidimeter and then to waste. For backwash, we are not concerned about the effluent turbidity, so those valves open to allow water to backwash the filter and go directly to effluent.
I am not so sure if your new set up will need solenoid valves. We should ask Monroe. There's a lot going on in the schematic you guys have, let's set up a time to go over it and we can figure out if they're required.
[This is also posted in the Stars Filter Theory discussion]
What is the difference between a closed solenoid valve and an open solenoid valve? What do they each do?
We are assuming the valves help with the flow of our streams and prevent them from flowing in the wrong direction.
In the old apparatus, there was a closed solenoid valve attached to the filter's effluent stream. You can see that in the apparatus design here. In our new apparatus, we will have 3 effluent streams. You can see it here. As can be seen in our apparatus, these streams will be connected to a pump (as recommended by Monroe). Will we still need closed solenoid valves attached to the effluent streams now that we have a pump?