Nitroturtle Posted April 20, 2018 Share Posted April 20, 2018 I'm trying to build a system with a fixed liquid output rate. I want the output to be at a rate of 1000 g/s with a shutoff controlled through automation. This is proving to be much more difficult than I expected, due to the way valves and shutoffs fill with full packets while turned off. If I place the shutoff before the valve, any time the automation enables the shutoff for long enough for liquid to pass, a full 10kg packet will pass. So even if the shutoff is only active for a brief moment, 1 full 10kg packet passes which turns into 10 x 1kg packets through my output valve. If I place the valve before the shutoff, while the shutoff is turned off it will gladly except the 1kg packets from the valve until it fills with 10kg. Then obviously when the shutoff is enabled, I get a 10kg packet again making the valve basically useless. What I'd like to see happen, is when the shutoff is active I get 1kg packets until the shutoff is inactive, at which point the flow stops. So if the automation is enabled for long enough for 3 x 1kg packets to pass and then disabled, I only get those 3 packets passed through. I've tried using a secondary valve set to 9kg/s to eat up the remaining packets. I've had partial success with this method, however it eventually ends up building up extra liquid and going back to giving me more output than I want. Really hoping somebody has a solution, as this seems like something that should be possible and it's becoming very frustrating being unable to get it to work correctly. Link to comment https://forums.kleientertainment.com/forums/topic/90004-flow-rate-reduction-with-liquid-shutoff/ Share on other sites More sharing options...
AndyPue Posted April 20, 2018 Share Posted April 20, 2018 I had a similar problem, it helps to use deterministic T-junctions. With 2:1 and 3:1 or with a bridge even 4:1 splitting its possible to cut out a single packet from the flow. Not super elegant, but works. - Andy Link to comment https://forums.kleientertainment.com/forums/topic/90004-flow-rate-reduction-with-liquid-shutoff/#findComment-1028066 Share on other sites More sharing options...
Kabrute Posted April 20, 2018 Share Posted April 20, 2018 use a mechanical filter set to a high value, read loop a valves input to output, set valve to 9kg "feed" into the with a bridge, only 1kg will ever get past the valves output. Link to comment https://forums.kleientertainment.com/forums/topic/90004-flow-rate-reduction-with-liquid-shutoff/#findComment-1028076 Share on other sites More sharing options...
Nitroturtle Posted April 20, 2018 Author Share Posted April 20, 2018 2 hours ago, AndyPue said: I had a similar problem, it helps to use deterministic T-junctions. With 2:1 and 3:1 or with a bridge even 4:1 splitting its possible to cut out a single packet from the flow. Not super elegant, but works. - Andy Doesn't work here, as this is the end of the flow that I'm trying to control. 2 hours ago, Kabrute said: use a mechanical filter set to a high value, read loop a valves input to output, set valve to 9kg "feed" into the with a bridge, only 1kg will ever get past the valves output. I'm using a mech filter on gas, but never though of using it for liquid and for this application. I've set it up and it works perfectly, thanks a ton! Link to comment https://forums.kleientertainment.com/forums/topic/90004-flow-rate-reduction-with-liquid-shutoff/#findComment-1028132 Share on other sites More sharing options...
Moggles Posted April 21, 2018 Share Posted April 21, 2018 You could try a shutoff both before and after the valva. The one after has the job of rerouting the excess back in to the system. Heres and old gif that sort of demonstrates. Link to comment https://forums.kleientertainment.com/forums/topic/90004-flow-rate-reduction-with-liquid-shutoff/#findComment-1028305 Share on other sites More sharing options...
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