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Product features: hydraulic
Type: proportional valve
Material: cast iron
Model: 4WRA6W30-2X/G24N9K4/V-589
Brand:Rexroth
Type (channel position): through type
Connection form: threaded
Drive mode: electromagnetic
Scope of application: hydraulic
Applicable medium: oil
Applicable temperature:30ºC
Nominal pressure:200MPa

Structure:Vertical
Display mode: pointer type

Low pressure maintains full flow output for fast movement (the pump is equivalent to a dosing pump in this process).
No output flow when the set value is reached, to realize the function of holding pressure.
Before the holding pressure value is reached to realize the high pressure on the load push, that is, high pressure slow feed movement.

(1) It must be ensured that the Rexroth Pilot Operated Check Valve has sufficient control pressure and that no loss of control pressure is allowed. Attention should be paid to whether the control pressure meets the requirements for reverse opening. If the control of the Rexroth Pilot Check Valve leads to the main system, the influence of the change in the pressure of the main system on the pressure of the control oil circuit should be analyzed, so as to avoid malfunctioning of the Rexroth Pilot Check Valve.
(2) According to the position of Rexroth Pilot Check Valve in the hydraulic system or reverse out of the oil chamber after the liquid flow resistance (back pressure) size, a reasonable choice of Rexroth Pilot Check Valve structure (simple or compound) and oil drainage (internal or external leakage). For Rexroth internal leakage type pilot operated check valve, when the reverse oil outlet pressure exceeds a certain value, the hydraulic control part will lose control, so Rexroth internal leakage type pilot operated check valve is generally used for reverse oil outlet cavity without back pressure or back pressure smaller occasions; and Rexroth external leakage type pilot operated check valve can be used for reverse oil outlet cavity back pressure higher occasions, in order to reduce the small control pressure, saving control power.
(3) Use two Rexroth Pilot Operated Check Valves or one Rexroth Dual Pilot Operated Check Valve to realize