Proportional Directional Valve 4WRZ25W8-325-7X/6EG24TK4/M - Bosch Rexroth R901077282

An axis that approaches quickly and then meters finely needs a wide span between nominal and peak flow. The 4WRZ25W8-325-7X/6EG24TK4/M covers 325 l/min nominal flow and allows up to 870 l/min.

Benefits

• 325 l/min nominal flow with flow up to 870 l/min, rapid traverse and fine feed sit on the same axis.
• External pilot supply, pilot pressure stays constant when speeds change.
• Internal return, only the X line is added.
• 18.2 kg weight, 350 bar maximum operating pressure, spool symbol W8 in size 25.
• Commanded at 24 VDC through an external amplifier, 7-pole (6 + PE) plug to EN 175201-804.

Applications

The valve is used on test rigs, drawing presses and infeed axes that alternate between fast travel and slow force application. The command value of the amplifier sets the speed, and the valve converts it through the opening cross section. The pilot circuit is supplied separately.

Manufacturer

Bosch Rexroth, material number R901077282. Flow characteristics for both operating ranges are given in data sheet RE 29115, the range overview in RE 07600-B.