pressure and flow control variable displacement pump
pressure and flow control variable displacement pump
(OP)
Hi Members
Need some tips on this subject.
If the flow controlled is opened in pressure and flow control variable displacement pump, the flow will increase due to pressure drop. How does this occur?
Need some tips on this subject.
If the flow controlled is opened in pressure and flow control variable displacement pump, the flow will increase due to pressure drop. How does this occur?





RE: pressure and flow control variable displacement pump
"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek
RE: pressure and flow control variable displacement pump
If you open the flow control, system pressure drops and the pressure feedback to the pump causes the pump displacement to increase in an attempt to increase flow and therefore system pressure to raise the pressure to the pump control pressure setting. If the required flow exceeds the pump flow control setting, then that control will limit flow and also system pressure.
Ted
RE: pressure and flow control variable displacement pump
As your other question was about a pump with a DR controller, would I be right in thinking this question is about a pump with a DFR controller?
DOL
RE: pressure and flow control variable displacement pump
Yes Oldhydroman it is a DFR. By the way thanks everyone for the tips.
Have a great day.
Naphty
RE: pressure and flow control variable displacement pump
RE: pressure and flow control variable displacement pump
Ted
RE: pressure and flow control variable displacement pump
I'm not quite sure I have understood this well. let's use for example DFR control with 4WE valve.
According to DFR control, the flow control is set at 15-20 bar (if I understand it correctly). Maximum pressure drop at 4WE valve is ~11 bar. So, according to this, there should be no swiveling of swash plate by using this 4WE valve. Correct?
RE: pressure and flow control variable displacement pump
Ted