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Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9K31/A1D3M - Bosch Rexroth R900618605
A self-contained pilot circuit can be laid out freely here, because pilot oil supply and return are both external. The size 25 valve meters 325 l/min nominal at 350 bar with the W6 spool and takes a ±10 V command value.
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Description
If you want to set pilot pressure and pilot filtration yourself, choose a build with external supply and external return. This one meters 325 l/min nominal through its W6 spool and accepts a ±10 V command value.
Benefits
- Both pilot oil paths external, decoupling the pilot circuit completely from the main circuit
- Nominal flow 325 l/min, up to 870 l/min through the valve
- Command value ±10 V without an extra amplifier, the electronics sit on the valve
- Operating pressure 350 bar with three switching positions and four ports
- UKCA conformity to SI2016/1091 for electromagnetic compatibility
- Weight 20.52 kg on port pattern ISO 4401-08-08-0-05
Application
The variant is used in press lines, central hydraulic units and plants with a shared pilot supply. A dedicated pilot circuit allows finer filtration and protects the control spool. Operation is on HL hydraulic fluid with NBR seals at 24 VDC.
Manufacturer
Bosch Rexroth lists this valve under material number R900618605. The manufacturer datasheet with characteristic curves, port pattern and installation dimensions is available in the download area of this page.
Technical data
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
|---|---|
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 325 l/min |
| Conformity | UKCA |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value ±10 V |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection description | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W6 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.52 kg |
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900618605 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Country of Manufacture | Germany |
Downloads
Datasheet
- Datasheet (PDF)
- Directional spool valves, direct operated (RE 23178) EN
- Directional spool valves, pilot-operated (RE 24751) EN
- Proportional directional valve, pilot-operated (RE 29115) EN
- Proportional-Wegeventil, vorgesteuert, ohne elektrische Wegrückführung, mit oder ohne integrierter (RD 29115) DE
- Wege-Schieberventile, direktgesteuert, mit Magnetbetätigung DE
- Wege-Schieberventile, vorgesteuert, mit hydraulischer oder elektro-hydraulischer Betätigung (RD 24751) DE
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