Supply Rexroth pressure reducing valve

  The oil of Rexroth pressure reducing valve flows back to the oil tank through the pilot valve and oil drain
Due to the action of the damping hole, the pressure drop is generated
When the differential pressure force in the upper and lower cavities of the main valve core is greater than the preload of spring 10, the main valve core rises, reducing the gap at the pressure reducing port and increasing the hydraulic resistance This causes the outlet pressure P2 to drop
On the contrary, exports will pick up
Rexroth pressure reducing valve can keep the outlet pressure stable at the set value by automatically adjusting the opening of the valve port
The valve port of Rexroth pressure reducing valve is normally open
Since the oil inlet and outlet are connected with pressure oil, the oil drain outlet shall be connected with the oil tank separately
Rexroth can adjust the control pressure of the pressure reducing valve by adjusting the compression force of the pilot valve spring
Structure and working principle of Rexroth pressure reducing valve if the inlet pressure P1 increases due to external disturbance
The outlet pressure P2 also increases
When the main valve core moves upward, the opening of the main valve decreases and P2 decreases to achieve balance at the new position, while the outlet pressure base wood remains unchanged: vice versa
In this way, the pressure reducing valve can utilize the outlet pressure Force feedback, automatic control valve opening Therefore, it is called constant pressure reducing valve