Proportional Directional Valve 4WRZE25W8-220-7X/6EG24N9ETK31/F1D3V - Bosch Rexroth R900715044

In large halls fifty metres of cable between power unit and cabinet are quickly reached, and every metre costs accuracy with a voltage command. This build works from an impressed current of 4 to 20 mA, feeds its pilot stage internally and meters 220 l/min nominal flow.

Benefits

• 4 to 20 mA current command, insensitive to line resistance and potential differences.
• Internal pilot oil supply and internal return, only 4 hydraulic ports on the valve.
• Nominal flow 220 l/min, flow up to 870 l/min, operating pressure up to 350 bar.
• Spool symbol W8, 3 switching positions, connection diagram ISO 4401-08-08-0-05.
• 24 VDC supply, 7-pole connector (6 + PE) to EN 175201-804, weight 20.76 kg.

Applications

The valve is used on widely distributed power units, on stage and lock drives and on mobile test equipment. Internal piloting requires permanent pressure in the main circuit. At 220 l/min the resolution over the spool stroke stays finer than with the large spool rating.

Manufacturer

Bosch Rexroth, material number R900715044. Product family 4WRZ(E), size 25, FKM seals, HL hydraulic fluid. Further details are given in data sheets RE 29115 and RE 07600-B.