Near Intersection of I-35 & I-90 Southern Mn. | larryshoat - 6/28/2026 16:10
It has a Banjo valve on it. It originally had a Raven on it that went bad couldn’t get one got this thinking it would be an easy change over, not so much. When I flip the master it may go over 100 gallons for a second then work its way back down and stay on rate goes too
Did it work more to your liking with the Raven control valve? If so, I would say the difference is in how the BanJo valve responds compared to the Raven. A solution might be to go back to the same style of valve that worked properly before.
The common Raven valves have one port IN and one port OUT and the direction is indicated by an arrow. They can be plumbed inline or on a tee for bypass control. A common Raven butterfly valve uses limit switches to limit the travel of the butterfly.
These limit switches allow the butterfly to travel from essentially fully closed to about 80 degrees open. The limit switches do not allow the butterfly to go to "completely" wide open since that last bit of travel doesn't increase the flow that much. Likewise if the butterfly were allowed to go fully open, there would be a delay in decreasing the flow when necessary. By limiting the fully open position, the butterfly has more effect on the flow.
With Raven control valves it should take about 8 seconds for the control valve to go from fully closed to fully open and vice versa. The Ag Leader system is designed to work with these characteristics with the default settings.
With a standard control valve setup (control valve in product line or bypass) there are two Response settings. Valve Response 1 is used when the applied rate is considerably different than the desired target rate. This is so the system can make major changes to the flow rate. Valve Response 2 is used when the applied rate is quite close to the desired target rate. Valve Response 2 is always less than Valve Response 1 so as not to overshoot the target rate.
The Response Threshold is where the system switches between Valve Response 1 and Valve Response 2.
Some control valves have 3 ports. Port 1 is IN, Port 2 is OUT to the boom and Port 3 is bypass BACK to the tank. With these control valves, the entire flow is split between Port 2 and Port 3.
The above is assuming that the control valve is in the product line and is either directly controlling the product getting to the boom by partially restricting its flow OR by indirectly controlling the product getting to the boom by partially restricting the flow back to the tank.
Many systems control the flow rate by controlling the speed of a hydraulic spray pump. This can be done with a hydraulic servo or PWM valve controlling the hydraulic flow and thus the output of the pump. I am assuming your system is NOT using hydraulic control to control the applied rate.
Edited by tedbear 6/29/2026 06:53
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Agleader Direct Command
