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Cattle Boards
Trucks, Tractors & Machinery
Open loop /closed loop question.
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<blockquote data-quote="chevytaHOE5674" data-source="post: 1754002" data-attributes="member: 19817"><p>Open center means oil is flowing all the time but zero/low pressure until there is demand.</p><p></p><p>Closed center means no flow but full pressure until demand. Pump dead heads and either destrokes or opens a bypass valve.</p><p></p><p>95% of the time open/close center has ZERO to do with the "implement/attachment". Open/closed is almost always a thing for the pump to spool valve. From the valve onward its simply an open loop when you pull the handle or hit the button.</p><p></p><p>On your SS when you activate the Aux circuit you are making it open center and oil flows 100% of pump output until you release the button. </p><p></p><p></p><p>My std flow SS will do nearly 18gpm at idle FYI.</p></blockquote><p></p>
[QUOTE="chevytaHOE5674, post: 1754002, member: 19817"] Open center means oil is flowing all the time but zero/low pressure until there is demand. Closed center means no flow but full pressure until demand. Pump dead heads and either destrokes or opens a bypass valve. 95% of the time open/close center has ZERO to do with the "implement/attachment". Open/closed is almost always a thing for the pump to spool valve. From the valve onward its simply an open loop when you pull the handle or hit the button. On your SS when you activate the Aux circuit you are making it open center and oil flows 100% of pump output until you release the button. My std flow SS will do nearly 18gpm at idle FYI. [/QUOTE]
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Open loop /closed loop question.
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